T-Mobile Q1 2026 Earnings: Broadband and Streaming TV Growth

T-Mobile US (TMUS) reported Q1 2026 service revenue growth of 11% year-over-year, a pace the company characterized as four times faster than its nearest competitor in the wireless market. The result represented a continuation of above-market top-line expansion, with gains across both the wireless and broadband segments contributing to the headline figure. Customer additions and rising spend per account each played a role, reflecting a business model that is widening revenue from its existing base while still adding new subscribers at a consistent clip.

Postpaid Growth and Revenue Per Account

T-Mobile added 217,000 postpaid net accounts in Q1 2026, a 6% increase year-over-year. Average revenue per account grew 3.9% over the same period, driven by a mix of premium plan uptake, expanded family lines, and incremental add-on services such as device protection and streaming bundles. The combination of volume growth and per-account monetization is notable because each reinforces the other: larger account relationships carry more lines and more services, which raises average revenue and reduces the effective churn rate by embedding multiple billing touchpoints within a single customer relationship.

Customer satisfaction metrics supported the retention story. T-Mobile's Net Promoter Score reached 45 in Q1, a level the company described as more than 20% higher than that of its nearest rival. NPS at that scale of gap historically correlates with lower involuntary churn and higher gross add efficiency, since satisfied customers generate referrals that reduce acquisition cost per new account. The combination of NPS momentum and rising revenue per account suggests the monetization gains are not coming at the expense of customer experience.

Broadband: Fastest-Growing ISP

T-Mobile added over 500,000 broadband customers in Q1 2026, extending its run as the fastest-growing internet service provider in the United States. The broadband segment operates on an asset-light model that distinguishes it from traditional wireline ISPs. T-Mobile already deployed the mid-band 5G spectrum and built the radio infrastructure needed to serve mobile subscribers nationwide. Broadband subscribers are routed through that same capacity in geographies and time windows where mobile utilization leaves sufficient headroom, a structure that keeps marginal costs low relative to a greenfield wireline build. The broader [telecom sector](/groups/telecom) has shifted toward bundled home-plus-mobile offerings as a churn reduction strategy, and T-Mobile's fixed wireless access product fits that pattern without requiring a separate copper or fiber footprint.

The company is targeting 15 million broadband customers by 2030. That projection rests entirely on the existing network footprint and carries two explicit conservative assumptions: no additional spectrum acquisitions and no contribution from 6G technology improvements. Both factors could expand addressable capacity beyond current estimates, meaning the 15-million figure represents a minimum scenario based on assets already in place. T-Mobile closed Q1 2026 with a broadband subscriber trajectory that management described as consistent with reaching that target on the current network alone.

AI Connectivity: Humanoid Robots and Live Translation

T-Mobile announced a partnership with Figure AI to connect humanoid robots to its 5G Advanced network. Figure AI develops bipedal robots designed for commercial and industrial applications including warehouse operations, logistics, and manufacturing. The partnership is structured to provide those robots with low-latency, high-reliability wireless connectivity, enabling edge-compute workloads and real-time data transmission that fiber-tethered systems cannot support for mobile physical applications. T-Mobile framed the arrangement as early positioning in what it expects to be a growing market for machine-to-machine 5G connectivity as autonomous physical systems scale commercially. The partnership does not yet represent a material revenue line, but it reflects how the carrier is thinking about network monetization beyond traditional consumer and enterprise wireless.

On the consumer side, T-Mobile is beta-testing Live Translation, a feature that translates live voice calls into 80 different languages in real-time. The feature runs natively over T-Mobile's network without requiring third-party applications, lowering the friction of cross-language voice communication for personal, small-business, and travel use cases. Beta availability indicates the feature is past proof-of-concept stage but has not yet reached full subscriber rollout. If the capability generalizes across plan tiers, it could function as a retention-relevant differentiator for multilingual households and internationally focused businesses.

Guidance Raised and 2030 Roadmap

CFO Peter Osvaldik raised several key guidance metrics for 2026 following the Q1 results. The upward revisions spanned service revenue, broadband net adds, and adjusted earnings measures, reflecting management's assessment that Q1 performance was repeatable rather than driven by one-time factors. Raising guidance after the first quarter of a fiscal year typically signals that the demand environment entering Q2 and beyond is at least as favorable as conditions in Q1, and that management has sufficient visibility into the remainder of the year to commit to higher targets.

The 2030 broadband roadmap sets a specific, numerically anchored target at a horizon that requires disciplined execution across multiple network and go-to-market cycles. Reaching 15 million broadband subscribers would place T-Mobile among the largest residential ISPs in the United States by subscriber count. The fallow-capacity model means scale economics improve as broadband penetration deepens, because the fixed costs of the 5G network are spread across a larger revenue base with each incremental subscriber. Full analysis of the quarterly results is available in the [T-Mobile Q1 2026 earnings breakdown](/podcasts/TMUS_Q1_2026).

Key Figures from Q1 2026

• Service revenue growth: 11% year-over-year, four times faster than nearest competitor
• Postpaid net accounts added: 217,000, up 6% year-over-year
• Average revenue per account growth: 3.9% year-over-year
• Broadband customers added in Q1: over 500,000
• Customer NPS: 45, more than 20% above nearest rival
• 2030 broadband subscriber target: 15 million (based on existing 5G assets, no new spectrum, no 6G)
• Live Translation beta: real-time voice translation across 80 languages
• New partnership: Figure AI humanoid robots connected to 5G Advanced network
• CFO Peter Osvaldik raised several 2026 guidance metrics after Q1 results