AT&T has signed a multi-year purchase agreement with Corning valued at more than $1 billion, deepening a supply relationship that now spans decades as the U.S. operator pushes fiber past an additional 1.7 million locations.

The deal, announced September 29, covers next-generation fiber, cable and connectivity solutions from Corning's Evolv portfolio. The most significant inclusion is Evolv FlexNAP with Multifiber Pushlok technology — hardware that will comply with the Build America, Buy America provisions attached to the Broadband Equity, Access, and Deployment (BEAD) program. That compliance matters: BEAD-funded deployments must use domestically manufactured components, so equipment certified under those rules keeps AT&T eligible for a share of the $42.5 billion federal subsidy program as it extends service into less densely populated markets.

AT&T described itself as the largest fiber internet provider in the U.S., based on the number of fiber-to-the-home households using publicly available data. It is also Corning's largest customer, with preferential volume status for Corning's connectivity solutions — a position the operator says lets it accelerate network expansion and improve performance while cutting deployment costs. How much of that cost advantage translates into faster build schedules, rather than simply healthier margins, remains to be seen; AT&T did not quantify the savings.

The commercial backdrop is concrete. AT&T has now posted five consecutive quarters of broadband subscriber growth, and its fiber network passes 28.3 million consumer and business locations. The operator says it remains on pace to pass more than 30 million locations by the end of 2025 — a target that leaves roughly 1.7 million premises to reach in the coming quarters.

The company is not relying on organic construction alone. Its build strategy now runs through three channels: direct capital investment, the Gigapower joint venture with BlackRock, and a set of recently announced commercial open-access agreements. Gigapower, which targets markets outside AT&T's traditional footprint, and the open-access deals effectively extend the operator's fiber reach without the full balance-sheet weight of wholly owned builds. The Corning agreement supports all three tracks, since the same connectivity hardware serves both AT&T-owned and partner networks.

For Corning, the contract locks in volume from its single biggest customer at a moment when optical and connectivity demand from hyperscalers and telecom operators is running high. The Evolv line is Corning's current-generation pre-connectorized platform, designed to reduce splicing labor in the field — a meaningful cost lever given the skilled-labor constraints that have slowed fiber builds across the U.S. AT&T's preferential volume status suggests it gets first call on manufacturing capacity as supply chains tighten.

The regulatory context shapes the deal as much as the commercial one. BEAD's Build America, Buy America requirements have pushed operators and vendors to onshore production of fiber, cable and connectivity components, and Corning — which manufactures extensively in the U.S. — is a natural beneficiary. AT&T's decision to specify BABA-compliant Evolv products positions it to bid for BEAD-funded projects in states where awards are still moving from approval to construction.

With the 30 million-location milestone due by the end of 2025 and BEAD-funded builds ramping behind it, the Corning agreement gives AT&T a secured hardware pipeline for the next phase of its fiber expansion.