"Altogether, Lumen said construction was underway coast-to-coast, and that it has delivered "significant" progress in its mission to build the backbone for the artificial intelligence (AI) economy. It added that it was moving forward with a multibillion-dollar build, with plans to add 34 million intercity fibre miles by the end of 2028, as part of the 47 million intercity fibre mile target."
"Highlighting specific milestones, the company said that in terms of new fibre deployed by the end of August 2025, it put down more than 2.2 million new intercity fibre miles (2,500+ route miles). This is projected to reach 16.6 million total intercity fibre miles by the end of the year. Lumen noted that it is utilising next-generation fibre optic cable from Corning to fit two times more fibre into existing conduits."
"The company said it has already delivered network capacity upgrades and high-speed connectivity enhancements in 2025 to build the network infrastructure enterprises need to power their AI workloads. "This isn't incremental: we're positioning Lumen as the trusted network for AI, ensuring our customers have the network scale, speed and reliability to confidently innovate and grow without constraints," said Kye Prigg, executive vice-president of enterprise operations at Lumen Technologies."
Lumen is constructing a nationwide intercity fibre backbone targeting 47 million intercity fibre miles, with a plan to add 34 million miles by the end of 2028. Over 2.2 million new intercity fibre miles (about 2,500 route miles) were deployed through August 2025, projecting 16.6 million total intercity miles by year-end. Network capacity upgrades and high-speed connectivity enhancements were delivered in 2025 to support enterprise AI workloads. Construction of 176 in-line amplifier (ILA) sites is underway with shelters designed for up to triple the power density. Conduit access expanded with indefeasible right of use deployments across 55 additional routes.
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