BIG Fiber is Now Present in Major Bay Area Carrier Hotels, Creating a Dark Fiber Ring
SUNNYVALE, Calif. (Jan. 19, 2026) — BIG Fiber, a leading provider of high-capacity, dark fiber solutions, has completed the latest expansion of its San Francisco Bay Area network with a strategic buildout into CoreSite’s SV1 data center in San Jose. This expansion is critical to BIG Fiber’s mission to deliver increased capacity to the Bay Area, creating a high-density AI-enabled network that allows innovators to scale seamlessly across more than 65 interconnected data centers. With the completion of this project, BIG Fiber offers enterprise and hyperscale customers a modern, high-capacity alternative to congested legacy infrastructure.
As AI adoption accelerates, regional data center vacancy rates have reached record lows meaning many legacy fiber networks in the Bay Area have become tapped out. This has left organizations that rely on mission critical digital infrastructure to fully leverage technology with limited capacity and a lack of true physical diversity. BIG Fiber’s latest 6,000-foot buildout into CoreSite’s facility, located at 55 S. Market Street in San Jose, provides tenants with access to a new, purpose-built network designed for the demands of 2026 and beyond.
“Our latest expansion is the final piece of the puzzle for our San Jose footprint,” said Patton Lochridge, CCO at BIG Fiber. “In dense environments like downtown San Jose, achieving true route diversity is an engineering challenge. By investing in this new infrastructure, we provide our customers with paths that bypass the congestion of legacy networks. We’re fully committed to providing more options for our customers to access new networks critical for AI workloads in one of the most dynamic data center markets in the world.”
With this addition, BIG Fiber is now present in the majority of major carrier hotels encircling the Bay Area, including key hubs at 200 Paul in San Francisco, 1100 Space Park Drive and 2820 Northwestern in Santa Clara, and the Great Oaks campus in Santa Clara. BIG Fiber’s San Francisco Bay Area network has more than 310 route miles and 2 million fiber miles, connecting the most critical data centers across the region.
The expansion into CoreSite’s SV1 data center enables tenants to leverage BIG Fiber’s dark fiber for high-speed, low-latency connectivity. To ensure maximum reliability, BIG Fiber is implementing a second entrance into the building, offering physical path diversity.
“CoreSite is committed to providing our customers with a robust ecosystem of high-performance connectivity options in all of our data center campuses, enabling them to quickly scale and interoperate with their businesses to support the increasing demands of critical workloads, like AI and high-density applications,” said Matt Senderhauf, VP of Interconnection Strategy at CoreSite. “The addition of BIG Fiber to our SV1 data center enhances the value we provide to our tenants by offering them new, diverse dark fiber routes that are essential for navigating today’s data-heavy environment.”
To celebrate its additional offerings in the market and the completion of this strategic hub, BIG Fiber is offering a special rate for its Bay Area network. To learn more, please visit https://info.bigfiber.com/sf-bay-area-special-rates.
# # #
About BIG Fiber
BIG Fiber is a metro dark fiber provider that offers high capacity, strategically placed, dark fiber networks to mission critical data centers, Hyperscalers and enterprises throughout the San Francisco Bay Area, Greater Portland and Greater Atlanta areas. BIG Fiber’s 100% underground network meets critical data needs for enterprises and data centers that require new, quality infrastructure options. BIG Fiber’s San Francisco Bay Area network offers more than 320 route miles and 65 data centers. The Greater Portland network has more than 20 route miles and 15 data centers, and the Greater Atlanta network has more than 550 route miles and 30 data centers. BIG Fiber was founded in 2019 and is headquartered in Sunnyvale, California. Visit www.bigfiber.com to learn more.
About CoreSite
CoreSite, an American Tower company (NYSE: AMT), is a leading interconnection data center platform that empowers businesses to future-proof their digital transformation initiatives. For more than 20 years, CoreSite’s purpose-built, highly interconnected data center campuses and team of experts have delivered the cloud-enabled, resilient and flexible digital ecosystems required for customers to quickly scale and interoperate their businesses to support the increasing demands of critical workloads, like AI and high-density applications. For more information, visit CoreSite.com and follow CoreSite on our Connect[ED] blog, LinkedIn and YouTube channels.
Forward-Looking Statements
This press release contains statements about future events and expectations, or “forward-looking statements,” all of which are inherently uncertain. We have based those forward-looking statements on management’s current expectations and assumptions and not on historical facts. These forward-looking statements involve a number of risks and uncertainties. For important factors that may cause actual results to differ materially from those indicated in our forward-looking statements, we refer you to the information set forth under the caption “Risk Factors” in Item 1A of American Tower’s most recent annual report on Form 10-K, and other risks described in documents American Tower subsequently files from time to time with the Securities and Exchange Commission. Neither we nor American Tower undertake any obligation to update the information contained in this press release to reflect subsequently occurring events or circumstances.
Media Contact:
Erin Zucca for BIG Fiber
Sr. Account Manager
1-845-661-3503
jsa_bigfiber@jsa.net
Media Contact:
Megan Ruszkowski
Vice President of Marketing and Sales Development
CoreSite
720-446-2014
press@CoreSite.com
PR Archives: Latest, By Company, By Date