AT&T expands Build-A-Plan to bundle mobile with home internet starting July 7

At a glance:

• AT&T expands Build-A-Plan on July 7 to bundle mobile with AT&T Fiber or AT&T Internet Air.
• Combined pricing starts at $70/month, covering a $15 base wireless tier, $20 standard‑def unlimited mobile data, and $35 home internet (Fiber 300 or Internet Air with AutoPay).
• The plan remains limited to one line per account and caps video streaming at 480p unless a premium data tier is added.

What changed with Build-A-Plan

AT&T first introduced Build-A-Plan in May as a modular, entry‑level phone plan starting at $15 per month. The original service let subscribers adjust cellular data limits and hotspot tiers on a month‑to‑month basis, giving them granular control over their wireless spend. This launch marked the carrier's first step toward a fully customizable mobile experience.

The July 7 expansion adds home‑internet integration, allowing customers to attach either AT&T Fiber or the 5G‑powered AT&T Internet Air to the same account. AT&T says the move targets the more than half of consumers who prefer to manage home and mobile broadband under a single bill. The update signals a broader convergence strategy that blends wireless and fixed‑line services into one configurable package.

Pricing and plan details

The combined bundle is priced from $70 per month and breaks down into three distinct components. The $15 base wireless tier provides the foundational line, while a $20 add‑on delivers unlimited mobile data with standard‑definition video streaming. The remaining $35 covers either AT&T Fiber 300 or AT&T Internet Air, provided the customer has an eligible wireless plan and enrolls in AutoPay.

• Base wireless tier: $15/month
• Standard‑definition unlimited mobile data: $20/month
• Home internet (AT&T Fiber 300 or AT&T Internet Air with AutoPay): $35/month

AT&T Fiber 300 offers 300 Mbps symmetric speeds over a fiber‑to‑the‑home connection, while Internet Air uses the carrier’s 5G network to deliver fixed wireless broadband where fiber is not yet deployed. Both home‑internet options are positioned as flexible alternatives that can be swapped month to month within the Build‑A‑Plan dashboard. The pricing structure is designed to make the total cost transparent and to encourage adoption of AutoPay for the home‑internet discount.

Limitations and what to watch

Build‑A‑Plan continues to enforce a single‑line limit per account, meaning families or multi‑line users cannot consolidate all numbers under one customizable plan. Video streaming on the included unlimited data tier is capped at 480p standard definition unless the subscriber upgrades to a premium data tier that lifts the resolution restriction. These constraints remain unchanged from the original May launch and apply equally to the new home‑internet bundle.

Looking ahead, analysts will watch whether AT&T introduces multi‑line support or richer premium tiers to make the bundle more competitive with rival converged offers from Verizon and T‑Mobile. The carrier’s reliance on AutoPay for the home‑internet discount could also draw scrutiny from consumer‑protection regulators. Finally, the rollout of Internet Air in additional markets will determine how quickly AT&T can claim a truly nationwide converged footprint.