Zayo expands long-haul dark fibre with 22 new routes

Created January 3, 2023
News and Business

Zayo Group Holdings Inc. has announced a series of expansions to its independent fibre network infrastructure, including continued growth in its long-haul capacity with three new and overbuilt dark fibre routes, 18 new 400 Gbps (400G) enabled routes, and a newly completed Trans-Pacific subsea route connecting the U.S. and Tokyo.

The company says its new long-haul dark fibre routes provide customers with diverse routing options and the ability to customise and enhance their network to meet the unique needs of their businesses while maximising resiliency and ability to scale. These new routes are entirely underground, which provides the highest level of security and redundancy.

Zayo’s newest completed Trans-Pacific subsea route connecting Hillsboro, Oregon, to Tokyo utilising the TGN-P cable marks the third Trans-Pacific route for Zayo, in addition to its existing capabilities on PC-1 and Unity. The route provides a diverse option to PC-1 for a Trans-Pacific cable landing in the U.S. Pacific Northwest and also includes a diverse landing station in Tokyo. The route is available with pre-provisioned and pre-tested 10G Waves circuits and is managed by Zayo’s network operation centre (NOC).

Map of Zayo’s long-haul dark fibre routes across North America (Graphic: Business Wire)

This series of expansions from Zayo marks the latest in the company’s US$250 million investment into its global infrastructure this year. Most recently, the company expanded its infrastructure and Tier 1 IP network into the key border cities of McAllen and Laredo, Texas, with two new 100G IP points of presence (PoPs) and 400G Wavelengths capabilities. In May, Zayo announced its largest organic network expansion to date. Zayo is also working on additional network expansions and updates which are set for completion in 2023 and beyond. Celebrating its 15 year anniversary this year, the company’s footprint now spans 16 million fibre miles and 137,000 route miles. In July 2022, Zayo launched its new Zeus subsea route connecting the UK and continental Europe via access points in Lowestoft, UK and Zandvoort, Netherlands.

“Zayo is committed to supporting the needs of our customers, not only for today, but for the innovations of tomorrow,” said Bill Long, chief product officer at Zayo. “Zayo is one of the only national providers actively pursuing new fibre builds, which have been enabled through our extensive existing infrastructure footprint, expertise within our teams, and the agile business structure Zayo has worked to build over the last 15 years. The continued expansion of our dark fibre and wave routes provides our customers with the customisation and scaling ability they need to accelerate their digital transformation journeys.”

For more information, visit


This article was written
by Peter Dykes

Peter Dykes is a independent telecoms and technology journalist who has over that last 30 years written for a wide range of B2B publications and companies. A former BT engineer, he specialises in networks and associated support systems. He is currently Editor of Optical Connections.