AT&T INC.

AT&T INC. is a US-listed company materially exposed to Tactical and Public-Safety Radio Systems.

AT&T Inc. is a telecommunications and media company operating primarily in the United States, with a smaller Mexico wireless business. Its reportable segments in the FY2023 Form 10-K are:

1. Mobility
2. Business Wireline
3. Consumer Wireline
4. Latin America

The company sells recurring subscription telecommunications services: wireless service plans, device installment/equipment sales, broadband fiber/copper internet, legacy voice, advanced enterprise networking, and government/public-safety communications such as FirstNet.

Source: AT&T Inc. Form 10-K for fiscal year ended December 31, 2023, filed February 23, 2024, SEC accession no. 0000732717-24-000012, Document: t-20231231.htm, accessed May 9, 2026. URL:

sec.gov

The segment mix matters because it means AT&T is overwhelmingly a differentiated cellular-wireless company with two wireline segments that contribute lower revenue share but have distinct economics. Mobility alone is roughly two-thirds of revenue. A convergence strategy — using AT&T Fiber and fixed-wireless to increase household share and reduce churn in wireless — is core to the disclosed strategic narrative in the 10-K.

AT&T monetizes through several streams:

• Postpaid wireless: consumers and businesses pay monthly service fees; hardware is often sold separately via installment plans.
• Prepaid wireless: sold under brands including Cricket and AT&T Prepaid.
• Consumer broadband: recurring monthly fees for AT&T Fiber and legacy copper-based internet and voice.
• Business wireline: long-term enterprise, wholesale, and government contracts for connectivity, private networking, Ethernet, VPN, cloud interconnect, and managed services.
• FirstNet: a public-private contract with the U.S. federal government/public-safety ecosystem for a dedicated communications platform.
• Equipment sales: lower-margin hardware revenue recognized in connection with wireless and some business wireline sales.

The 10-K’s segment disaggregation shows that equipment revenue is material inside Mobility, but the more economically valuable component is subscription service revenue. AT&T does not present a traditional two-line gross margin in the same way a product company would; instead, the statement of income presents total operating revenues and then cost of services/sales, selling/general/administrative expense, depreciation, and other items. For that reason, this note uses operating margin and segment-level operating contribution as the cleanest margin measures from primary filings.

AT&T FY2023 consolidated figures from the 10-K:

• Total operating revenues: $122,428 million
• Operating income: $23,549 million
• Operating margin: 19.2%
• Net income attributable to AT&T: $14,400 million
• Net income margin: 11.8%

Source: AT&T Inc. Form 10-K for fiscal year ended December 31, 2023, accession no. 0000732717-24-000012, Document: t-20231231.htm, filed February 23, 2024, accessed May 9, 2026.

sec.gov

These are observed operating and net margins, not estimates. The margin structure is representative of a long-lived-network, subscription-dominated business with large depreciation and amortization from spectrum, towers, fiber, and network assets.

AT&T’s 10-K does not name a single non-government customer that accounts for more than 10% of consolidated revenue. The filing does identify government/public-sector and public-safety operations as material, with FirstNet as the flagship federal/public-safety contract. Specifically, AT&T discloses FirstNet-related network buildout, public-safety subscriber relationships, and the importance of the U.S. government as a customer class. However, the filing does not disclose a named private commercial customer that is >10% of revenue.

Therefore, the only customer class I can rigorously name from the filing is the U.S. federal government/public-safety sector via FirstNet. Private enterprise customer names are not disclosed in the 10-K at a level that supports a named-customer claim.

From the 10-K’s segment and business discussion, the buyer classes are:

1. Consumer postpaid wireless: individuals and families selecting national postpaid plans.
2. Consumer prepaid wireless: price-sensitive consumers, mostly under Cricket and AT&T Prepaid brands.
3. Consumer broadband households: residents in fiber-enabled or copper-enabled areas.
4. Enterprise and wholesale buyers: companies purchasing dedicated connectivity, WAN, voice, and managed services.
5. Government and public safety: federal, state, local agencies; first responders through FirstNet.
6. Branded resellers and IoT/connected-device ecosystem: connected cars, tablets, wearables, and other devices.

The only named customer type I can source directly to the filing is the U.S. government/public-safety market via FirstNet. AT&T describes FirstNet as a public-private partnership with the FirstNet Authority, which is a U.S. government body. The 10-K discusses public-safety customers as a distinct strategic category.

AT&T’s concentration disclosures do not require naming any single private commercial customer, and the 10-K does not volunteer private customer names. Therefore, a specific private customer name would need to come from an 8-K contract announcement or a separate SEC filing; I did not find a >10% customer named in the FY2023 10-K.

• T — AT&T Inc. holds the FirstNet contract and operates the U.S. public-safety Band 14 LTE network. [FCC 700 MHz page](https://www.fcc.gov/general/700-mhz-

• - T — AT&T Inc. holds the FirstNet contract and operates the U.S. public-safety Band 14 LTE network. [FCC 700 MHz page](https://www.fcc.gov/general/700-mhz- source

Expected customer life:

\[

\frac{1}{0.0084} = 119.05 \text{ months}

\]

Monthly service revenue per user:

\[

\$56.23

\]

Undiscounted lifetime service revenue:

\[

56.23 \times 119.05 = \$6,694.18

\]

Then apply the segment operating contribution margin. Using 31% as the derived segment profitability proxy:

\[

6,694.18 \times 0.31 = \$2,075.20

\]

Therefore, the estimated operating-value lifetime contribution of an AT&T postpaid phone subscriber is approximately:

\[

\boxed{\$2,075}

\]

The CLV estimate is sensitive to churn and modestly sensitive to ARPU. It is also sensitive to the segment margin. The true contribution margin at the individual subscriber level may be higher than the segment operating margin because segment operating margin includes fixed network and support costs. Therefore, this should be read as a conservative operating-value approximation rather than a pure variable-cost CLV; the pure variable-cost lifetime contribution would likely be higher.

This calculation demonstrates that a postpaid phone customer is worth roughly $1,300 to $2,500 in operating profit contribution depending on churn and margin assumptions. That single number helps explain why AT&T is willing to spend large sums on retention, bundles, fiber builds, and device promotions.