Deal scope and buildout targets
Zayo has expanded its long-running supply relationship with Corning to lock in a major share of the fiber optic cable it expects to need through the rest of the decade. The companies described the agreement as a strategic supply arrangement supporting one of the largest network expansions in Zayo's history, with Zayo planning to add 15,000 new route miles by 2030. That plan includes more than 8,000 miles of new long-haul fiber deployed in collaboration with Nvidia, alongside additional capacity in existing corridors where AI infrastructure demand is clustering.
AI demand as the driving pressure
Both companies framed the deal as a response to surging fiber requirements from AI infrastructure. Zayo's announcement said AI is reshaping "where and how quickly network capacity needs to be built," and the joint statement released with the deal said "AI infrastructure is putting unprecedented pressure on one of the physical inputs required to scale it: fiber." Securing that supply now, the companies said, gives Zayo greater flexibility to scale as demand evolves rather than competing in a tightening spot market.
Leadership context around the agreement
Zayo CEO Steve Smith said the deeper Corning relationship gives the company more confidence that material availability will not slow customer deployments, adding, "We understand where demand is moving, and we're putting the physical inputs in place now to build ahead of it." Smith is set to step down as CEO on Sept. 1, when Sowmyanarayan Sampath, a former Verizon executive, will take over after nearly six years of Smith leading the company.
BEAD supply assurances and industry context
Corning separately said the Zayo agreement will not affect fiber availability for winners of the Broadband Equity, Access, and Deployment program, even as the company continues to manage demand from hyperscalers. Earlier in August, Corning's vice president of market development Bob Whitman said at the Mountain Connect conference that the company was staggering fiber shipments to BEAD winners to align with deployment timelines rather than fulfilling bulk orders, an effort to keep federally funded rural builds on track while meeting AI-driven orders. AT&T and Lumen executives also said this week they were seeing "skyrocketing" supply-chain costs tied to AI demand, underscoring why Zayo chose to reserve capacity in advance.
Network scale and unanswered financial terms
Zayo said its North American fiber network spans roughly 224,000 route miles, a footprint that grew earlier this year with the $8.5 billion acquisition of 90,000 route miles from Crown Castle. The companies declined to disclose the financial terms of the new Corning agreement, leaving the contract's value and volume figures unspecified in the public announcement.
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