T-Mobile US, Inc.NASDAQ: TMUS

2026 Q3 Investor Factbook

· Issued by T-Mobile US, Inc.
‌EXHIBIT 99.2

2

3

Highlights

4

Account Metrics

6

Financial Metrics

12

Capital Structure

13

Guidance

14

Contacts

15

Financial and Operational Tables

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DIGITAL JOURNEY

T-LIFE

(2)

ADJUSTED

FREE CASH FLOW

NET CASH

PROVIDED BY OPERATING ACTIVITIES

$7.3B

SS.1B

STRONG MARGIN OF 38%

STRONG IHARGIN

OF 26%

MONTHLY ACTIVE USERS

$19.4B

GREW 6%YoY

GREW 27% YoY

GREW 11% YoY

INDUSTRY-LEADING GROWTH

DILUTED EPS OF 53.22 GREW 34% YoY

INDUSTRY-LEADING GROWTH

SERVICE REVENUES

NET INCOME

2

CORE ADJUSTED EBITDA '

$3.SB

T

Highlights

3

POSTPAID

POSTPAID

/155.73 274K I

POSTPAIDARPA

NETACCOUNT

»

$1d.3B

SERVICE REVENUES

GREW4% YoY

TOTAL POSTPAID ACCOUNTS GREW 3°/ YoY

GREW 9OZ+YoY

INDUSTRY-LEADING GROWTH(

NAG

O P E N S I G N A L

(MAJOR CARRIER)

(MAJOR CARRIER),ASWELLAS FASTEST MOBILE NETWORK, BEST MOBILE NETWORK COVERAGE, BEST MOBILE NETWORK PRICING(MAJOR CARRIER), AND HIGHEST MOBILE NETWORK CUSTOMER SATISFACTION

FOR 5G COVERAGE AND TIME ON 5G IN LARGE LAND-AREA MARKETS

AGAIN, SWEEPING ALL 13 AWARD CATEGORIES FOR THE SECOND CONSECUTIVE QUARTER

  1. Industry-leading claims are based on consensus expectations if results are not yet reported.

    2026

  2. Core Adjusted EBITDA, Adjusted Free Cash Flow and Adjusted Free Cash Flow margin are non-GAAP financial measures. These non-GAAP financial measures should be considered in addition to, but not as a substitute for, the information provided in accordance with GAAP. Reconciliations for these non-GAAP financial measures to the most directly comparable GAAP financial measures are provided in the Reconciliation of Non-GAAP Financial Measures to GAAP Financial Measures tables. We are not able to forecast Net income on a forward-looking basis without unreasonable efforts due to the high variability and difficulty in predicting certain items that affect Net income, including, but not limited to, Special Items, Income tax expense and Interest expense. Core Adjusted EBITDA should not be used to predict Net income as the difference between this measure and Net income is variable.

‌Year-Over-Year‌

Postpaid Accounts

(in thousands)

33,979 34,240 34,439 34,700 34,974

396

261

217

277

274

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

Postpaid net account additions Postpaid accounts

During Q3 2025, we acquired 1,448,000 postpaid accounts, net of certain base adjustments, through the UScellular acquisition.

During Q3 2025, we acquired 633,000 postpaid accounts from Metronet and other acquisitions.

During Q1 2026, we recognized a base adjustment to decrease postpaid accounts by 18,000, primarily due to combining certain business accounts that have multiple billing account numbers.

During Q2 2026, Metronet agreed to repurchase certain customer accounts, resulting in a base adjustment to decrease postpaid accounts by 16,000.

These base adjustments had no impact on postpaid net account additions.

Continued growth in Postpaid accounts with a decrease in net additions primarily due to:
  • Higher account deactivations driven by higher average broadband-only accounts which have higher churn, the temporary impact of our rate plan modernization, and the impact of a growing account base, including following the acquisitions of UScellular and Metronet during Q3 2025

    Sequential

Continued growth in Postpaid accounts with a slight decrease in net additions primarily due to:
  • Higher account deactivations driven by the temporary impact of our rate plan modernization, higher average broadband-only accounts which have higher churn, and seasonally higher switching activity

  • Mostly offset by higher gross account additions, including seasonally higher switching activity

    Year-Over-Year

Postpaid ARPA

Postpaid ARPA increased 4% primarily due to:

$155.73

$152.91

$149.44

$150.17

$151.93

  • Higher fee revenue, including from the adoption of tax and fee exclusive plans, and the positive impact from our rate plan modernization

  • An increase in customers per account, including from the continued adoption of 5G broadband and continued growth of T-Mobile for Business accounts, partially offset by fiber and UScellular accounts with fewer customers per account

  • Partially offset by increased promotional activity, including the success of bundled offerings

    Sequential

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 Postpaid ARPA increased 2% primarily due to:
  • The positive impact from our rate plan modernization and higher fee revenue, including from the adoption of tax and fee exclusive plans

  • Partially offset by increased promotional activity, including the success of bundled offerings

    Year-Over-Year

Postpaid account churn increased 12 basis points primarily due to:
  • Higher average broadband-only accounts which have higher churn and the temporary impact of our rate plan modernization

    0.97%

    0.99%

    1.04% 1.04%

    Postpaid Account Churn

    1.09%

    Sequential

Postpaid account churn increased 10 basis points primarily due to:
  • The temporary impact of our rate plan modernization, higher average broadband-only accounts which have higher churn, and seasonally higher switching activity

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    ‌Year-Over-Year‌

$19,375

Service revenues increased 6% primarily due to:

Service Revenues

($ in millions)

$18,831

$18,983

$18,241

$18,702

  • An increase in Postpaid service revenues, including following the acquisitions of UScellular and Metronet during Q3 2025

  • Partially offset by lower Prepaid service revenues

    Sequential

Service revenues increased 2% primarily due to:
  • An increase in Postpaid service revenues

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    ‌Year-Over-Year

Postpaid service revenues increased 9% primarily due to:
  • Higher average postpaid accounts, including following the acquisitions of UScellular and Metronet during Q3 2025

  • Higher postpaid ARPA

    Sequential

Postpaid service revenues increased 3% primarily due to:
  • Higher postpaid ARPA

  • Higher average postpaid accounts

    Postpaid Service Revenues

    ($ in millions)

    $15,853 $16,269

    $14,882

    $15,378

    $15,629

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    ‌Year-Over-Year

$5,364

Equipment revenues increased 13% primarily due to:

Equipment Revenues

($ in millions)

$3,996

$3,929

$3,465

$3,524

  • Higher average revenue per device sold, net of promotions, primarily driven by an increase in the high-end phone mix and higher manufacturer pricing

  • Higher liquidation revenue, primarily due to a higher number of liquidated devices and an increase in the high-end phone mix

  • Partially offset by a decrease in the total number of devices sold, primarily driven by lower prepaid devices

Sequential

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 Equipment revenues increased 11% primarily due to:
  • Higher average revenue per device sold, net of promotions, primarily driven by higher manufacturer pricing and an increase in the high-end phone mix

  • A higher number of devices sold, including seasonal trends

    ‌Year-Over-Year

Cost of equipment sales, exclusive of Depreciation and Amortization (D&A), increased 12% primarily due to:
  • Higher average cost per device sold, primarily driven by higher manufacturer pricing and an increase in the high-end phone mix

  • Higher liquidation costs, primarily due to a higher number of liquidated devices and an increase in the high-end phone mix

  • Partially offset by a decrease in the total number of devices sold, primarily driven by lower prepaid devices

    Cost of Equipment Sales, exclusive of D&A

    ($ in millions, % of Equipment sales*)

    $5,488

    $4,853

    $5,055 $5,444

    140.2% 129.9% 137.4% 143.4% 138.6%

    $6,967

    Sequential

Cost of equipment sales, exclusive of D&A, increased 8% primarily due to:
  • Higher average cost per device sold, primarily driven by higher manufacturer pricing and an increase in the high-end phone mix

  • A higher number of devices sold, including seasonal trends

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    Cost of Equipment sales, excl. D&A

    % of Equipment sales, excl. D&A

    *Equipment sales is defined as Equipment revenues less Lease revenues.

    ‌Year-Over-Year

Cost of Services, exclusive of D&A

($ in millions, % of Service revenues)

$2,873

$3,305

$3,339

$2,978 $3,007

Cost of services, exclusive of D&A, increased 5% primarily due to:

$2,811

$3,031

$2,894

$2,865

$2,939

  • Higher repair and maintenance expenses

15.4%

16.2%

15.4%

15.1%

15.2%

Sequential

  • Higher wholesale network access costs and amortization of customer installation fees paid to Metronet and Lumos

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 Cost of services, exclusive of D&A, increased slightly.

Cost of services, ex. D&A and Special Items UScellular merger-related costs

Other Special Items

% of Srvc revs, ex. D&A and Special Items

‌Year-Over-Year

Selling, General and Administrative (SG&A) Expense

($ in millions, % of Service revenues)

SG&A expense was relatively flat primarily due to:

$6,570

$6,015

$5,966

$5,834

$6,020

$5,828

$6,106

$5,709

$5,569

$5,778

32.0%

32.6%

30.3%

29.3%

29.8%

  • Lower business tax refunds and credits

  • Higher bad debt expense

  • Offset by lower personnel-related costs, including payroll and benefits, and lower external labor and professional services expenses

    Sequential

SG&A expense increased 3% primarily due to:
  • Lower vendor credits related to software services

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    SG&A expense, ex. Special Items UScellular merger-related costs Other Special Items

    % of Srvc revs, ex. Special Items

    ‌Year-Over-Year

$3,455

Net income was $3.5 billion and Diluted earnings per share was $3.22 in Q3 2026, compared to $2.7 billion and

Net Income

($ in millions, % of Service revenues)

$3,239

$2,714

$2,504

$2,103

14.9%

11.2%

13.3%

17.1%

17.8%

$2.41 in Q3 2025, primarily due to the factors described above and included the following:
  • UScellular merger-related costs, net of tax, of $98 million, or $0.09 per share, in Q3 2026 and $55 million, or $0.05 per share, in Q3 2025

  • Impairment expense related to certain capitalized software development costs, net of tax, in Q3 2025 of

$208 million, or $0.18 per share

Sequential

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

Diluted Earnings Per Share

(Diluted EPS)

$2.99

$2.41

$2.27

$1.88

$3.22

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

Net income was $3.5 billion and Diluted earnings per share was $3.22 in Q3 2026, compared to $3.2 billion and

$2.99 in Q2 2026, primarily due to the factors described above and included the following:
  • UScellular merger-related costs, net of tax, of $98 million, or $0.09 per share, in Q3 2026 and $146 million, or $0.14 per share, including accelerated depreciation, in Q2 2026

    ‌Year-Over-Year

$9,240 $9,537 $9,620

Core Adjusted EBITDA increased 11% primarily due to:

Core Adjusted EBITDA*

($ in millions, % of Service revenues)

  • Higher Total service revenues

    $8,680

    $8,445

    47.6%

    45.2%

    49.1%

    50.2%

    49.7%

  • Higher Equipment revenues, excluding Lease revenues

  • Partially offset by higher Cost of equipment sales, excluding Special Items, and higher Cost of services, excluding Special Items

    Sequential

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

*Excludes Special Items (see detail on page 22)

Core Adjusted EBITDA increased slightly, primarily due to:
  • Higher Equipment revenues, excluding Lease revenues

  • Higher Total service revenues

  • Mostly offset by higher Cost of equipment sales, excluding Special Items, and higher SG&A expenses, excluding Special Items

‌Year-Over-Year

Net cash provided by operating activities decreased 2% primarily due to:
  • Higher net cash outflows from changes in working capital

  • Partially offset by higher Net income, adjusted for non-cash income and expenses

    Net Cash Provided by Operating Activities

    ($ in millions)

    $6,654

    $7,457

    $7,222 $7,500 $7,341

    Sequential

Net cash provided by operating activities decreased 2% primarily due to:
  • Higher net cash outflows from changes in working capital

    The impact of Net payments for merger-related costs on Net cash provided by operating activities was $198 million in Q3 2026 compared to $181 million in Q2 2026 and $96 million in Q3 2025.

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    ‌Year-Over-Year

Cash Purchases of Property and Equipment, incl. Capitalized Interest

($ in millions, % of Service revenues)

Cash purchases of property and equipment, including capitalized interest, decreased 14% primarily due to:
  • Planned timing of capital purchases

    Sequential

$2,639

$2,703

$2,469

$2,623

$2,270

14.5%

13.2%

13.9%

14.2%

11.7%

Cash purchases of property and equipment, including capitalized interest, decreased 16% primarily due to:
  • Planned timing of capital purchases

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    ‌Year-Over-Year

Adjusted Free Cash Flow increased 5% primarily due to:
  • Lower Cash purchases of property and equipment

  • Partially offset by lower Net cash provided by operating activities

    Adjusted Free Cash Flow

    ($ in millions)

    $5,071

    Sequential

$4,818

$4,599

$4,797

$4,185

Adjusted Free Cash Flow increased 6% primarily due to:
  • Lower Cash purchases of property and equipment

  • Partially offset by lower Net cash provided by operating activities

    The impact of Net payments for merger-related costs on Adjusted Free Cash Flow was $198 million in Q3 2026 compared to $181 million in Q2 2026 and $96 million in Q3 2025.

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    Total Debt (Excluding Tower Obligations),

    Net Debt (Excluding Tower Obligations), and

    Net Debt to LTM Net Income and Core Adj. EBITDA Ratios

    ($ in billions)

    ‌Total debt, excluding tower obligations, at the end of Q3 2026 was $86.0 billion.‌

    Net debt, excluding tower obligations, at the end of Q3 2026 was $80.3 billion.

    $86.5 $88.6 $88.2 $86.9 $86.0

    $83.2

    $83.0

    $84.7

    $84.1

    $80.3

    7.0x

    7.5x

    8.0x

    8.0x

    7.1x

    2.5x

    2.4x

    2.4x

    2.3x

    2.2x

    Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

    Net Debt (excluding Tower Obligations) Cash and Cash Equivalents

    Net Debt to LTM Net Income Ratio

    Net Debt to LTM Core Adjusted EBITDA Ratio

    Stockholder Returns

    ($ in millions)

    $3,457

    $3,595

    $3,257

    $3,504

    $2,415

    $2,156

    $2,470 $2,460

    $1,101

$1,089

$1,135

$987

$4,901

$1,120

$6,021

  • On December 11, 2025, the company announced that its Board of Directors (the "Board") authorized a stockholder return program for up to $14.6 billion that will run through December 31, 2026, consisting of additional repurchases of shares and payment of cash dividends.

    • On April 23, 2026, the company announced that the Board increased the company's 2026 stockholder return authorization to up to

      $18.2 billion, representing an increase of up to

      $3.6 billion from its prior 2026 authorization.

    • During Q3 2026, the Board declared a cash dividend of $1.17 per share, an increase of

      $0.15 per share, or 15%. The dividend will be paid on December 10, 2026, to stockholders of record as of the close of business on November 25, 2026.

  • On a cumulative basis, since the company initiated its stockholder return program in Q3 2022, a total of

    $58.1 billion has been returned to stockholders as of September 30, 2026, with 264.4 million shares repurchased for $46.7 billion, and cumulative cash dividends of $11.5 billion.

    • During Q3 2026, 13.6 million shares were repurchased for $2.4 billion.

    • During Q3 2026, the company paid a cash dividend of $1.02 per share of common stock, or

      $1.1 billion, on September 10, 2026.

  • In Q4 2026, through October 23, 2026, the company repurchased an additional $791 million in common stock, totaling $3.2 billion in stock repurchased since the beginning of Q3 2026.

Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026

Stock buybacks Dividends paid

‌2026 Outlook‌

$28.4 to $28.8 billion

$28.7 to $28.8 billion

~$10.0 billion

$18.7 to $18.8 billion

$150 million

$18.4 to $18.8 billion

Adjusted Free Cash Flow

No change

~$10.0 billion

Capital expenditures (3)

$150 million

Previous

Net cash provided by operating activities

Change at Midpoint

Revised

$37.35 to $37.45 billion

24% to 25%

~1.0 million

N/A

Metric

million

Postpaid net account additions 950 thousand to 1.05

No change

Net income (1) N/A N/A

Effective tax rate 25% to 26% (100) bps

Core Adjusted EBITDA (2) $37.1 to $37.5 billion $100 million

  1. We are not able to forecast Net income on a forward-looking basis without unreasonable efforts due to the high variability and difficulty in predicting certain items that affect GAAP Net income, including, but not limited to, Special Items, Income tax expense and Interest expense. Core Adjusted EBITDA should not be used to predict Net income as the difference between this measure and Net income is variable.

  2. Management uses Core Adjusted EBITDA as a measure to monitor the financial performance of our operations, excluding the impact of lease revenues from our related device financing programs.

  3. Capital expenditures means cash purchases of property and equipment, including capitalized interest.

‌Investor Relations‌

Cathy Yao

Matthew Hale

Jon Lanterman

Senior Vice President

Senior Director

Senior Director

Charles Buffum

Chris Lo

Danna Tao

Aner Hezroni

Senior Manager

Manager

Manager

Senior Analyst

[email protected] https://investor.t-mobile.com

‌T-Mobile US, Inc.‌

Condensed Consolidated Balance Sheets (Unaudited)

(in millions, except share and per share amounts)

September 30,

2026

December 31,

2025

Assets

Current assets

Cash and cash equivalents

$ 5,620

$ 5,598

Accounts receivable, net of allowance for credit losses of $251 and $226

5,012

4,874

Equipment installment plan receivables, net of allowance for credit losses and unamortized discount of

$723 and $733

4,530

4,997

Inventory

3,085

2,405

Prepaid expenses

909

1,215

Other current assets

2,686

5,372

Total current assets

21,842

24,461

Property and equipment, net

36,035

38,333

Operating lease right-of-use assets

24,208

25,692

Financing lease right-of-use assets

2,987

2,760

Goodwill

13,665

13,678

Spectrum licenses

99,980

98,032

Other intangible assets, net

3,066

3,843

Equipment installment plan receivables due after one year, net of allowance for credit losses and unamortized discount of $199 and $213

2,457

2,683

Other assets

8,864

9,755

Total assets

$ 213,104

$ 219,237

Liabilities and Stockholders' Equity

Current liabilities

Accounts payable and accrued liabilities

$ 8,624

$ 10,280

Short-term debt

6,343

5,135

Deferred revenue

1,407

1,533

Short-term operating lease liabilities

3,644

3,814

Short-term financing lease liabilities

1,158

1,163

Other current liabilities

2,815

2,575

Total current liabilities

23,991

24,500

Long-term debt

77,323

79,649

Long-term debt to affiliates

-

1,498

Tower obligations

3,419

3,532

Deferred tax liabilities

21,715

19,583

Operating lease liabilities

25,017

26,371

Financing lease liabilities

1,136

1,107

Other long-term liabilities

4,196

3,794

Total long-term liabilities

132,806

135,534

Commitments and contingencies

Stockholders' equity

Common stock, par value $0.00001 per share, 2,000,000,000 shares authorized; 1,280,056,882 and 1,275,774,235 shares issued, 1,062,845,266 and 1,106,930,661 shares outstanding

-

-

Additional paid-in capital

70,089

69,460

Treasury stock, at cost, 217,211,616 and 168,843,574 shares issued

(40,102)

(30,545)

Accumulated other comprehensive loss

(595)

(848)

Retained earnings

26,915

21,136

Total stockholders' equity

56,307

59,203

Total liabilities and stockholders' equity

$ 213,104

$ 219,237

‌T-Mobile US, Inc.

Condensed Consolidated Statements of Comprehensive Income (Unaudited)

Three Months Ended

Nine Months Ended September 30,

(in millions, except share and per share amounts)

September 30,

2026

June 30,

2026

September 30,

2025

2026

2025

Revenues

Postpaid revenues

$ 16,269

$ 15,853

$ 14,882

$ 47,751

$ 42,554

Prepaid revenues

2,427

2,473

2,625

7,417

7,911

Wholesale and other service revenues

679

657

734

2,021

2,139

Total service revenues

19,375

18,983

18,241

57,189

52,604

Equipment revenues

3,929

3,524

3,465

11,449

10,608

Other revenues

280

284

251

844

763

Total revenues

23,584

22,791

21,957

69,482

63,975

Operating expenses

Cost of services, exclusive of depreciation and amortization shown separately below

3,007

2,978

2,873

9,324

8,192

Cost of equipment sales, exclusive of depreciation and amortization shown separately below

5,444

5,055

4,853

15,987

14,310

Selling, general and administrative

6,020

5,834

6,015

17,820

16,900

Impairment expense

-

-

278

-

278

Depreciation and amortization

3,452

3,434

3,408

10,703

9,752

Total operating expenses

17,923

17,301

17,427

53,834

49,432

Operating income

5,661

5,490

4,530

15,648

14,543

Other expense, net

Interest expense, net

(1,031)

(1,055)

(924)

(3,117)

(2,762)

Other expense, net

(90)

(107)

(78)

(329)

(135)

Total other expense, net

(1,121)

(1,162)

(1,002)

(3,446)

(2,897)

Income before income taxes

4,540

4,328

3,528

12,202

11,646

Income tax expense

(1,085)

(1,089)

(814)

(3,004)

(2,757)

Net income

$ 3,455

$ 3,239

$ 2,714

$ 9,198

$ 8,889

Net income $ 3,455 $ 3,239 $ 2,714 $ 9,198 $ 8,889

Other comprehensive income (loss), net of tax

Reclassification of loss from cash flow hedges, net of tax effect

of $18, $17, $16, $52 and $48 52 50 48 152 141

Gains (losses) on fair value hedges, net of tax effect of $9, $48,

$(7), $45 and $(55) 27 142 (20) 133 (160)

Unrealized gain (loss) on foreign currency translation

adjustment, net of tax effect of $1, $0, $0, $1 and $0 1 9 - 10 (1)

Prior service cost, net of amortization, and amortization of actuarial gain, on pension and other postretirement benefits, net

of tax effect of $(13), $(1), $0, $(14) and $(1)

(40)

(1)

(1)

(42)

(4)

Other comprehensive income (loss)

40

200

27

253

(24)

Total comprehensive income

$ 3,495

$ 3,439

$ 2,741

$ 9,451

$ 8,865

Earnings per share

Basic

$ 3.23

$ 2.99

$ 2.42

$ 8.49

$ 7.84

Diluted

$ 3.22

$ 2.99

$ 2.41

$ 8.47

$ 7.82

Weighted-average shares outstanding

Basic

1,070,648,134

1,081,771,279

1,123,754,096

1,084,089,790

1,133,743,367

Diluted

1,071,630,434

1,082,409,636

1,126,627,708

1,085,476,683

1,136,920,521

‌T-Mobile US, Inc.

Condensed Consolidated Statements of Cash Flows (Unaudited)

Three Months Ended

Nine Months Ended September 30,

(in millions)

September 30,

2026

June 30,

2026

September 30,

2025

2026

2025

Operating activities

Net income

$ 3,455

$ 3,239

$ 2,714

$ 9,198

$ 8,889

Adjustments to reconcile net income to net cash provided by operating activities

Depreciation and amortization

3,452

3,434

3,408

10,703

9,752

Stock-based compensation expense

197

214

227

620

613

Deferred income tax expense

637

893

797

2,212

2,505

Bad debt expense

437

398

337

1,261

925

Losses from sales of receivables

15

17

17

52

58

Impairment expense

-

-

278

-

278

Changes in operating assets and liabilities

Accounts receivable

(9)

(498)

(366)

(669)

(797)

Equipment installment plan receivables

(9)

103

44

39

133

Inventory

(892)

142

(537)

(664)

(591)

Operating lease right-of-use assets

969

965

929

3,130

2,667

Other current and long-term assets

(122)

(354)

(322)

(443)

(983)

Accounts payable and accrued liabilities

(421)

(265)

890

(1,094)

729

Short- and long-term operating lease liabilities

(979)

(976)

(936)

(3,173)

(2,720)

Other current and long-term liabilities

334

(3)

(239)

222

(409)

Other, net

277

191

216

669

247

Net cash provided by operating activities

7,341

7,500

7,457

22,063

21,296

Investing activities

Purchases of property and equipment, including capitalized interest of $(7), $(6), $(13), $(20) and $(33)

(2,270)

(2,703)

(2,639)

(7,596)

(7,486)

Purchases of spectrum licenses and other intangible assets, including deposits

(324)

(484)

(1,590)

(834)

(2,505)

Proceeds from the sale of property, equipment and intangible

assets 2,927 16 18 3,038 2,091

Acquisition of companies, net of cash acquired - - (2,797) (1) (3,523)

Investments in unconsolidated affiliates, net 4 (3) (3,072) 1 (4,055)

Other, net 21 122 (59) (151) 371

Net cash provided by (used in) investing activities 358 (3,052) (10,139) (5,543) (15,107)

Financing activities

Proceeds from issuance of long-term debt, net 498 (5) 498 6,891 8,266

Repayments of financing lease obligations (331) (360) (318) (995) (964)

Repayments of long-term debt (1,367) (1,336) (828) (9,138) (4,564)

Repurchases of common stock

(2,418)

(2,320)

(2,479)

(9,564)

(7,528)

Dividends on common stock (1,089) (1,101) (987) (3,310) (2,986)

Tax withholdings on share-based awards

(86)

(31)

(92)

(271)

(394)

Other, net (55) (29) (32) (83) (80)

Net cash used in financing activities (4,848) (5,182) (4,238) (16,470) (8,250)

Effect of exchange rate changes on cash and cash

equivalents, including restricted cash - - - - 13

Change in cash and cash equivalents, including restricted

cash 2,851 (734) (6,920) 50 (2,048)

Cash and cash equivalents, including restricted cash

Beginning of period 3,175 3,909 10,585 5,976 5,713

End of period $ 6,026 $ 3,175 $ 3,665 $ 6,026 $ 3,665

T-Mobile US, Inc.

Condensed Consolidated Statements of Cash Flows (Continued) (Unaudited)

Three Months Ended

Nine Months Ended September 30,

(in millions)

September 30,

2026

June 30,

2026

September 30,

2025

2026

2025

Supplemental disclosure of cash flow information

Interest payments, net of amounts capitalized

$ 946

$ 1,119

$ 997

$ 3,119

$ 2,923

Operating lease payments

1,302

1,303

1,269

4,142

3,685

Income tax payments, net of refunds received

7

757

63

774

415

Non-cash investing and financing activities

Change in accounts payable and accrued liabilities for purchases of property and equipment

$ 51

$ (404)

$ 136

$ (710)

$ (458)

Operating lease right-of-use assets obtained in exchange for lease obligations

582

540

1,064

1,647

2,138

Financing lease right-of-use assets obtained in exchange for lease obligations

340

488

324

1,050

1,002

Debt assumed in the UScellular Acquisition

-

-

1,653

-

1,653

‌T-Mobile US, Inc.

Supplementary Operating and Financial Data (Unaudited)

Quarter

Nine Months Ended September 30,

(in thousands)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Accounts, end of period

Total postpaid accounts (1) (2) (3) (4) (5)

31,099

31,502

33,979

34,240

34,439

34,700

34,974

33,979

34,974

  1. In the second quarter of 2025, we acquired 85,000 postpaid accounts from Lumos.

  2. In the third quarter of 2025, we acquired 633,000 postpaid accounts from Metronet and other acquisitions.

  3. In the third quarter of 2025, we acquired 1,448,000 postpaid accounts through the UScellular acquisition, which includes the impact of certain base adjustments to align the policies of UScellular and T-Mobile.

  4. In the first quarter of 2026, we recognized a base adjustment to decrease postpaid accounts by 18,000, primarily due to combining certain business accounts that have multiple billing account numbers.

  5. In the second quarter of 2026, Metronet agreed to repurchase certain customer accounts, resulting in a base adjustment to decrease postpaid accounts by 16,000. These base adjustments had no impact on postpaid net account additions.

Quarter

Nine Months Ended September 30,

(in thousands)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Net account additions

Postpaid net account additions

205

318

396

261

217

277

274

919

768

Quarter

Nine Months Ended September 30,

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Churn

Postpaid account churn

0.94 %

0.92 %

0.97 %

1.04 %

1.04 %

0.99 %

1.09 %

0.94 %

1.04 %

Quarter

Nine Months Ended September 30,

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Operating measure

Postpaid ARPA

$ 146.22

$ 149.87

$ 149.44

$ 150.17

$ 151.93

$ 152.91

$ 155.73

$ 148.54

$ 153.53

Quarter

Nine Months Ended September 30,

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Postpaid upgrade rate

Postpaid device upgrade rate 2.8 % 2.5 % 2.7 % 3.8 % 2.8 % 2.6 % 2.8 % 8.0 % 8.3 %

Quarter

Nine Months Ended September 30,

(in millions)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Device financing - equipment installment plans

Gross EIP financed

$ 3,565

$ 3,503

$ 3,871

$ 5,774

$ 4,322

$ 3,958

$ 4,576

$ 10,939

$ 12,856

EIP billings

3,551

3,553

3,766

4,066

4,167

4,132

4,303

10,870

12,602

EIP receivables, net

Device financing - leased devices

6,405

6,201

6,915

7,680

7,488

7,173

6,987

6,915

6,987

Lease revenues

$ 1

$ 6

$ 4

$ 2

$ 1

$ -

$ -

$ 11

$ 1

Leased device depreciation

4

1

-

-

-

-

-

5

-

T-Mobile US, Inc.

Supplementary Operating and Financial Data (continued) (Unaudited)

Quarter

Nine Months Ended September 30,

(in millions, except percentages)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Financial measures

Service revenues

$16,925

$17,438

$18,241

$18,702

$18,831

$18,983

$19,375

$52,604

$57,189

Equipment revenues

$ 3,704

$ 3,439

$ 3,465

$ 5,364

$ 3,996

$ 3,524

$ 3,929

$10,608

$11,449

Lease revenues

1

6

4

2

1

-

-

11

1

Equipment sales

$ 3,703

$ 3,433

$ 3,461

$ 5,362

$ 3,995

$ 3,524

$ 3,929

$10,597

$11,448

Total revenues

$20,886

$21,132

$21,957

$24,334

$23,107

$22,791

$23,584

$63,975

$69,482

Net income

$ 2,953

$ 3,222

$ 2,714

$ 2,103

$ 2,504

$ 3,239

$ 3,455

$ 8,889

$ 9,198

Net income margin

17.4 %

18.5 %

14.9 %

11.2 %

13.3 %

17.1 %

17.8 %

16.9 %

16.1 %

Adjusted EBITDA

$ 8,259

$ 8,547

$ 8,684

$ 8,447

$ 9,241

$ 9,537

$ 9,620

$25,490

$28,398

Adjusted EBITDA margin

48.8 %

49.0 %

47.6 %

45.2 %

49.1 %

50.2 %

49.7 %

48.5 %

49.7 %

Core Adjusted EBITDA

$ 8,258

$ 8,541

$ 8,680

$ 8,445

$ 9,240

$ 9,537

$ 9,620

$25,479

$28,397

Core Adjusted EBITDA margin

48.8 %

49.0 %

47.6 %

45.2 %

49.1 %

50.2 %

49.7 %

48.4 %

49.7 %

Cost of services, exclusive of depreciation and amortization

$ 2,602

$ 2,717

$ 2,873

$ 3,305

$ 3,339

$ 2,978

$ 3,007

$ 8,192

$ 9,324

UScellular merger-related costs

-

-

7

24

344

44

22

7

410

Other Special Items

20

28

55

250

101

69

46

103

216

Cost of services, exclusive of depreciation and amortization and Special Items

$ 2,582

$ 2,689

$ 2,811

$ 3,031

$ 2,894

$ 2,865

$ 2,939

$ 8,082

$ 8,698

Cost of equipment sales, exclusive of depreciation and amortization

$ 4,798

$ 4,659

$ 4,853

$ 6,967

$ 5,488

$ 5,055

$ 5,444

$14,310

$15,987

UScellular merger-related costs

-

-

2

8

14

23

2

2

39

Other Special Items

-

-

-

-

8

-

-

-

8

Cost of equipment sales, exclusive of depreciation and amortization and Special Items

$ 4,798

$ 4,659

$ 4,851

$ 6,959

$ 5,466

$ 5,032

$ 5,442

$14,308

$15,940

Selling, general and administrative $ 5,488 $ 5,397 $ 6,015 $ 6,570 $ 5,966 $ 5,834 $ 6,020 $16,900 $17,820

UScellular merger-related costs 14 33 64 111 48 115 105 111 268

Other Special Items 59 (51) 123 353 209 150 137 131 496

Selling, general and administrative, excluding

Special Items $ 5,415 $ 5,415 $ 5,828 $ 6,106 $ 5,709 $ 5,569 $ 5,778 $16,658 $17,056

Total bad debt expense and losses from sales of

receivables $ 345 $ 284 $ 354 $ 445 $ 446 $ 415 $ 452 $ 983 $ 1,313

Bad debt and losses from sales of receivables as a percentage of Total revenues

1.7 %

1.3 %

1.6 %

1.8 %

1.9 %

1.8 %

1.9 %

1.5 %

1.9 %

Cash purchases of property and equipment including capitalized interest

$ 2,451

$ 2,396

$ 2,639

$ 2,469

$ 2,623

$ 2,703

$ 2,270

$ 7,486

$ 7,596

Capitalized interest

10

10

13

10

7

6

7

33

20

Net cash proceeds from securitization

$ (26)

$ (23)

$ (25)

$ (22)

$ (20)

$ (22)

$ (20)

$ (74)

$ (62)

Net payments for Merger-related costs

$ 70

$ 92

$ 96

$ 100

$ 153

$ 181

$ 198

$ 258

$ 532

T-Mobile US, Inc.

Supplementary Operating and Financial Data (Continued) (Unaudited)

Quarter

Nine Months Ended September 30,

(in millions, except share and per share amounts)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Stockholder returns

Total repurchases

$ 2,470

$ 2,469

$ 2,470

$ 2,460

$ 4,901

$ 2,156

$ 2,415

$ 7,409

$ 9,472

Total shares repurchased

10,091,227

10,148,791

10,204,072

11,919,136

23,329,925

11,420,845

13,621,695

30,444,090

48,372,465

Average purchase price per share

$ 244.77

$ 243.32

$ 242.01

$ 206.38

$ 210.07

$ 188.76

$ 177.31

$ 243.36

$ 195.81

Total dividends paid

$ 1,003

$ 996

$ 987

$ 1,135

$ 1,120

$ 1,101

$ 1,089

$ 2,986

$ 3,310

Dividends per share

$ 0.88

$ 0.88

$ 0.88

$ 1.02

$ 1.02

$ 1.02

$ 1.02

$ 2.64

$ 3.06

Total stockholder returns

$ 3,473

$ 3,465

$ 3,457

$ 3,595

$ 6,021

$ 3,257

$ 3,504

$ 10,395

$ 12,782

Cumulative total repurchases

$ 29,785

$ 32,254

$ 34,724

$ 37,184

$ 42,085

$ 44,241

$ 46,656

$ 34,724

$ 46,656

Cumulative shares repurchased

183,754,602

193,903,393

204,107,465

216,026,601

239,356,526

250,777,371

264,399,066

204,107,465

264,399,066

Cumulative stockholder returns

$ 34,835

$ 38,300

$ 41,757

$ 45,352

$ 51,373

$ 54,630

$ 58,134

$ 41,757

$ 58,134

‌T-Mobile US, Inc.

Reconciliation of Non-GAAP Financial Measures to GAAP Financial Measures (Unaudited)

This Investor Factbook includes non-GAAP financial measures, including Adjusted EBITDA, Core Adjusted EBITDA, Net Debt, Adjusted Free Cash Flow and Adjusted Free Cash Flow margin. The non-GAAP financial measures should be considered in addition to, but not as a substitute for, the information provided in accordance with GAAP. Reconciliations for the non-GAAP financial measures to the most directly comparable GAAP financial measures are provided below. T-Mobile is not able to forecast Net income on a forward-looking basis without unreasonable efforts due to the high variability and difficulty in predicting certain items that affect GAAP Net income, including, but not limited to, Special Items, Income tax expense and Interest expense.

Adjusted EBITDA and Core Adjusted EBITDA should not be used to predict Net income, as the difference between either of these measures and Net income is variable.

Adjusted EBITDA and Core Adjusted EBITDA are reconciled to Net income as follows:

Quarter

Nine Months Ended September 30,

(in millions, except percentages)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Net income

$2,953

$ 3,222

$ 2,714

$ 2,103

$ 2,504

$ 3,239

$ 3,455

$ 8,889

$ 9,198

Adjustments:

Interest expense, net

916

922

924

1,012

1,031

1,055

1,031

2,762

3,117

Other expense, net

46

11

78

89

132

107

90

135

329

Income tax expense

885

1,058

814

532

830

1,089

1,085

2,757

3,004

Operating income

4,800

5,213

4,530

3,736

4,497

5,490

5,661

14,543

15,648

Depreciation and amortization

3,198

3,146

3,408

3,756

3,817

3,434

3,452

9,752

10,703

Stock-based compensation (1)

168

178

217

209

203

212

195

563

610

UScellular merger-related costs

14

33

73

143

406

182

129

120

717

Network restructuring initiative costs (2)

-

-

-

93

76

52

38

-

166

Legal-related expenses (recoveries), net (3)

6

(4)

8

6

54

16

14

10

84

Impairment expense

-

-

278

-

-

-

-

278

-

Other, net (4)

73

(19)

170

504

188

151

131

224

470

Adjusted EBITDA

8,259

8,547

8,684

8,447

9,241

9,537

9,620

25,490

28,398

Lease revenues

(1)

(6)

(4)

(2)

(1)

-

-

(11)

(1)

Core Adjusted EBITDA

$8,258

$ 8,541

$ 8,680

$ 8,445

$ 9,240

$ 9,537

$ 9,620

$25,479

$28,397

Net income margin (Net income divided by Service revenues)

17.4 %

18.5 %

14.9 %

11.2 %

13.3 %

17.1 %

17.8 %

16.9 %

16.1 %

Adjusted EBITDA margin (Adjusted EBITDA divided by Service revenues)

48.8 %

49.0 %

47.6 %

45.2 %

49.1 %

50.2 %

49.7 %

48.5 %

49.7 %

Core Adjusted EBITDA margin (Core Adjusted

EBITDA divided by Service revenues) 48.8 % 49.0 % 47.6 % 45.2 % 49.1 % 50.2 % 49.7 % 48.4 % 49.7 %

  1. Stock-based compensation includes payroll tax impacts and may not agree to stock-based compensation expense on the Condensed Consolidated Financial Statements.

  2. In Q4 2025, we began implementing network restructuring initiatives as a result of recent technological advancements that enhanced our Customer-Driven Coverage insights. Network restructuring initiative costs consist of network decommissioning and contract termination costs related to the rationalization of our network and backhaul services and the elimination of duplicative costs.

  3. Legal-related expenses (recoveries), net, consists of the settlement of certain litigation and compliance costs associated with the August 2021 cyberattack, net of insurance recoveries.

  4. Other, net, primarily consists of certain severance, restructuring and other expenses, gains and losses, not directly attributable to the UScellular acquisition, which are not reflective of T-Mobile's ongoing core business activities and are, therefore, excluded from Adjusted EBITDA and Core Adjusted EBITDA. Other, net, for the three months ended March 31, 2026 and December 31, 2025, includes $141 million and $390 million, respectively, and $141 million for the nine months ended September 30, 2026, of severance and related costs associated with the 2025-2026 workforce transformation and reinvestment initiative. Additionally, Other, net, for the three months ended September 30, 2026 and June 30, 2026 , includes $50 million and $108 million, respectively, and $158 million for the nine months ended September 30, 2026, of costs associated with retail initiatives to close certain dealer- and corporate-owned stores in connection with our ongoing digital initiatives to simplify routine transactions, as well as enhance customer experiences by transitioning in part to large-format experience stores.

T-Mobile US, Inc.

Reconciliation of Non-GAAP Financial Measures to GAAP Financial Measures (continued) (Unaudited)

Net debt (excluding tower obligations) to the LTM Net income, LTM Adjusted EBITDA and LTM Core Adjusted EBITDA ratios are calculated as follows:

(in millions, except net debt ratios)

Mar 31,

2025

Jun 30,

2025

Sep 30,

2025

Dec 31,

2025

Mar 31,

2026

Jun 30,

2026

Sep 30,

2026

Short-term debt

$ 8,214

$ 6,408

$ 6,333

$ 5,135

$ 2,238

$ 6,117

$ 6,343

Short-term financing lease liabilities

1,136

1,157

1,157

1,163

1,155

1,178

1,158

Long-term debt

76,033

75,018

76,365

79,649

83,809

78,504

77,323

Long-term debt to affiliates

1,497

1,497

1,498

1,498

-

-

-

Financing lease liabilities

1,117

1,188

1,186

1,107

1,024

1,121

1,136

Total debt (excluding tower obligations)

$ 87,997

$ 85,268

$ 86,539

$ 88,552

$ 88,226

$ 86,920

$ 85,960

Less: Cash and cash equivalents

(12,003)

(10,259)

(3,310)

(5,598)

(3,520)

(2,825)

(5,620)

Net debt (excluding tower obligations)

$ 75,994

$ 75,009

$ 83,229

$ 82,954

$ 84,706

$ 84,095

$ 80,340

Divided by: Last twelve months Net income

$ 11,918

$ 12,215

$ 11,870

$ 10,992

$ 10,543

$ 10,560

$ 11,301

Net debt (excluding tower obligations) to LTM Net income Ratio

6.4

6.1

7.0

7.5

8.0

8.0

7.1

Divided by: Last twelve months Adjusted EBITDA

$ 32,471

$ 32,965

$ 33,406

$ 33,937

$ 34,919

$ 35,909

$ 36,845

Net debt (excluding tower obligations) to LTM Adjusted EBITDA Ratio

2.3

2.3

2.5

2.4

2.4

2.3

2.2

Divided by: Last twelve months Core Adjusted EBITDA

$ 32,412

$ 32,926

$ 33,384

$ 33,924

$ 34,906

$ 35,902

$ 36,842

Net debt (excluding tower obligations) to LTM Core Adjusted EBITDA Ratio

2.3

2.3

2.5

2.4

2.4

2.3

2.2

Adjusted Free Cash Flow and Adjusted Free Cash Flow margin are calculated as follows:

Quarter

Nine Months Ended September 30,

(in millions, except percentages)

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Q2 2026

Q3 2026

2025

2026

Net cash provided by operating activities

$ 6,847

$ 6,992

$ 7,457

$ 6,654

$ 7,222

$ 7,500

$ 7,341

$21,296

$22,063

Cash purchases of property and equipment, including capitalized interest

(2,451)

(2,396)

(2,639)

(2,469)

(2,623)

(2,703)

(2,270)

(7,486)

(7,596)

Adjusted Free Cash Flow

$ 4,396

$ 4,596

$ 4,818

$ 4,185

$ 4,599

$ 4,797

$ 5,071

$13,810

$14,467

Net cash provided by operating activities margin

40.5 %

40.1 %

40.9 %

35.6 %

38.4 %

39.5 %

37.9 %

40.5 %

38.6 %

Adjusted Free Cash Flow margin

26.0 %

26.4 %

26.4 %

22.4 %

24.4 %

25.3 %

26.2 %

26.3 %

25.3 %

‌Definitions of Terms

Operating and financial measures are utilized by T-Mobile's management to evaluate its operating performance and, in certain cases, its ability to meet liquidity requirements. Although companies in the telecommunications industry may not define measures in precisely the same way, T-Mobile believes the measures facilitate key operating performance comparisons with other companies in the telecommunications industry to provide management, investors and analysts with useful information to assess and evaluate past performance and assist in forecasting future performance.

  1. Account - Generally, a billing account that generates revenue. Postpaid accounts generally consist of customers that are qualified for postpaid service utilizing phones, 5G broadband gateways, fiber connections, mobile internet devices, including tablets and hotspots, wearables, DIGITS or other connected devices, including SyncUP and IoT, where they generally pay after receiving service.

  2. Account Churn - The number of accounts whose service was deactivated as a percentage of the average number of accounts during the specified period further divided by the number of months in the period. The number of accounts whose service was deactivated is calculated net of accounts that subsequently had their service restored within a certain period of time and excludes accounts who received service for less than a certain minimum period of time, account mergers and account migrations.

  3. Postpaid Average Revenue Per Account ("ARPA") - Average monthly postpaid service revenue earned per account. Postpaid service revenues for the specified period divided by the average number of postpaid accounts during the period, further divided by the number of months in the period.

    Service revenues - Postpaid, including handset insurance, prepaid, wholesale and other service revenues.

  4. Cost of services - Costs directly attributable to providing wireless communications and broadband services, including direct switch and cell site costs, such as rent, network access and transport costs, utilities, maintenance, associated labor costs, long distance costs, regulatory program costs, roaming fees paid to other carriers and data content costs.

    Cost of equipment sales - Costs of devices and accessories sold to customers and dealers, device costs to fulfill insurance and warranty claims, write-downs of inventory related to shrinkage and obsolescence, and shipping and handling costs.

    Selling, general and administrative expenses - Costs not directly attributable to providing wireless communications and broadband services for the operation of sales, customer care and corporate activities. These include all commissions paid to dealers and retail employees for activations and upgrades, labor and facilities costs associated with retail sales force and administrative space, marketing and promotional costs, customer support and billing, bad debt expense and administrative support activities.

  5. Net income margin - Net income divided by Service revenues.

  6. Adjusted EBITDA and Core Adjusted EBITDA - Adjusted EBITDA represents earnings before Interest expense, net of Interest income, Income tax expense, Depreciation and amortization, stock-based compensation and Special Items. Core Adjusted EBITDA represents Adjusted EBITDA less device lease revenues. Core Adjusted EBITDA and Adjusted EBITDA are non-GAAP financial measures utilized by T-Mobile's management, including our chief operating decision maker, to monitor the financial performance of our operations and allocate resources of the Company as a whole. T-Mobile historically used Adjusted EBITDA and T-Mobile currently uses Core Adjusted EBITDA internally as a measure to evaluate and compensate its personnel and management for their performance. T-Mobile uses Adjusted EBITDA and Core Adjusted EBITDA as benchmarks to evaluate its operating performance in comparison to competitors. Management believes analysts and investors use Core Adjusted EBITDA and Adjusted EBITDA as supplemental measures to evaluate overall operating performance and to facilitate comparisons with other wireless communications and broadband services companies because they are indicative of T-Mobile's ongoing operating performance and trends by excluding the impact of Interest expense from financing, depreciation and amortization from capital investments, stock-based compensation and Special Items. Management believes analysts and investors use Core Adjusted EBITDA because it normalizes for the transition in the Company's device financing strategy, by excluding the impact of device lease revenues from Adjusted EBITDA, to align with the exclusion of the related depreciation expense on leased devices from Adjusted EBITDA. Core Adjusted EBITDA and Adjusted EBITDA have limitations as analytical tools and should not be considered in isolation or as substitutes for Income from operations, Net income or any other measure of financial performance reported in accordance with U.S. Generally Accepted Accounting Principles ("GAAP").

  7. Special Items - Certain expenses, gains, and losses which are not reflective of our ongoing performance. Special Items include UScellular merger-related costs, network restructuring initiative costs (as discussed above), certain legal-related expenses and recoveries, Impairment expense, restructuring costs not directly attributable to the UScellular acquisition (including severance), and other non-core gains and losses.

  8. Adjusted EBITDA margin and Core Adjusted EBITDA margin - Adjusted EBITDA margin is calculated as Adjusted EBITDA divided by Service revenues. Core Adjusted EBITDA margin is calculated as Core Adjusted EBITDA divided by Service revenues. Adjusted EBITDA margin and Core Adjusted EBITDA margin are non-GAAP financial measures utilized by T-Mobile's management, including our chief operating decision maker, to monitor the financial performance of our operations and allocate resources of the Company as a whole.

  9. Net cash provided by operating activities margin - Net cash provided by operating activities margin is calculated as Net cash provided by operating activities divided by Service revenues.

  10. Adjusted Free Cash Flow - Net cash provided by operating activities less cash payments for purchases of property and equipment, including capitalized interest. Adjusted Free Cash Flow is utilized by T-Mobile's management, investors, and analysts of our financial information to evaluate cash available to pay debt, repurchase shares, pay dividends and provide further investment in the business.

  11. Adjusted Free Cash Flow margin - Adjusted Free Cash Flow margin is calculated as Adjusted Free Cash Flow divided by Service revenues. Adjusted Free Cash Flow margin is utilized by T-Mobile's management, investors, and analysts to evaluate the company's ability to convert service revenue efficiently into cash available to pay debt, repurchase shares, pay dividends and provide further investment in the business.

  12. Net debt - Short-term debt, long-term debt (excluding tower obligations), and long-term debt to affiliates, short-term financing lease liabilities and financing lease liabilities, less cash and cash equivalents.

  13. Net payments for merger-related costs include net cash payments for Sprint merger-related costs and UScellular merger-related costs.

  14. UScellular merger-related costs to date include:

    • Integration costs to achieve efficiencies in network, retail, information technology and back office operations and migrate customers to the T-Mobile network and billing systems;

    • Restructuring costs, including contract terminations, severance and network decommissioning; and

    • Transaction costs, including legal and professional services related to the completion of the UScellular acquisition.

‌Cautionary Statement Regarding Forward-Looking Statements

This communication includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including information concerning T-Mobile US, Inc.'s future results of operations, are forward-looking statements. These forward-looking statements are generally identified by the words "anticipate," "believe," "estimate," "expect," "intend," "may," "could" or similar expressions. Forward-looking statements are based on current expectations and assumptions, which are subject to risks and uncertainties and may cause actual results to differ materially from the forward-looking statements. Important factors that could affect future results and cause those results to differ materially from those expressed in the forward-looking statements include, among others, the following: competition, industry consolidation and changes in the market for wireless communications services and other forms of connectivity; cyberattacks, disruptions, data loss or other security breaches; our inability to adopt and deploy network technologies in a timely and effective manner; our inability to effectively execute our digital initiatives and drive customer and employee adoption of emerging technologies; our inability to retain or motivate key personnel, hire qualified personnel or maintain our corporate culture; system failures and business disruptions, allowing for unauthorized use of or interference with our network and other systems; the scarcity and cost of additional wireless spectrum, and regulations relating to spectrum use; the timing and effects of any pending and future acquisition, investment, joint venture, merger or divestiture involving us, including our inability to obtain any required regulatory approval necessary to consummate any such transactions or to achieve the expected benefits of such transactions; adverse economic, political or market conditions in the U.S. and international markets, including changes resulting from increases in oil prices, inflation or interest rates, tariffs and trade restrictions, supply chain disruptions, fluctuations in global currencies, immigration policies, and impacts of geopolitical instability, such as global conflict, wars and further escalations thereof; operational delays, higher procurement costs, such as memory chip cost impacts on smartphones, and operational costs, and increased regulatory and compliance complexities, for example, as a result of changes to trade policies, including higher tariffs, restrictions and other economic disincentives to trade; our inability to successfully deliver new products and services; any failure or inability of our third parties (including key suppliers) to provide products or services for the operation of our business; sociopolitical volatility and polarization and risks related to environmental, social and governance matters; our substantial level of indebtedness and our inability to service our debt obligations in accordance with their terms; changes in the credit market conditions, credit rating downgrades or an inability to access debt markets; our inability to maintain effective internal control over financial reporting; compliance with the current regulatory framework, including our national security obligations, and any changes in regulations or in the regulatory framework under which we operate; laws and regulations relating to the handling of privacy, data protection and artificial intelligence; unfavorable outcomes of and increased costs from existing or future regulatory or legal proceedings; difficulties in protecting our intellectual property rights or if we infringe on the intellectual property rights of others; our offering of regulated financial services products and exposure to a wide variety of state and federal regulations; new or amended tax laws or regulations or administrative interpretations and judicial decisions affecting the scope or application of tax laws or regulations; our wireless licenses, including those controlled through leasing agreements, are subject to renewal and may be revoked; our exclusive forum provision as provided in our Certificate of Incorporation; interests of Deutsche Telekom AG ("DT"), our controlling stockholder, which may differ from the interests of other stockholders; our current and future stockholder return programs may not be fully utilized, and our share repurchases and dividend payments pursuant thereto may fail to have the desired impact on stockholder value; future sales of our common stock by DT and our inability to attract additional equity financing outside the United States due to foreign ownership limitations by the Federal Communications Commission; and other risks as disclosed in our most recent annual report on Form 10-K, and subsequent Forms 10-Q and other filings with the Securities and Exchange Commission. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law.

‌About T-Mobile US, Inc.

As the supercharged Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is powered by an award-winning nationwide 5G Advanced network that connects more people, in more places, than ever before. With T-Mobile's unique value proposition of best network, best value and best experiences, the Un-carrier is redefining connectivity and fueling competition while continuing to drive the next wave of innovation in wireless, broadband and beyond. Headquartered in Bellevue, Wash., T-Mobile provides services through its subsidiaries and operates its flagship brands, T-Mobile, Metro by T-Mobile and Mint Mobile. For more information, visit https://www.t-mobile.com.

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