Zayo ranks on vertical systems group's U.S. Carrier ethernet LEADERBOARD, up from challenge tier after crown castle fiber solutions deal. Discover more Compare ISPs Read Company News Upgrade Network 15 Oct, 2026 Source: zColo Key facts: * Zayo ranked No. 6 on Vertical Systems Group's Mid-2026 U.S. Carrier Ethernet LEADERBOARD based on retail port share, moving up from the Challenge Tier. * Vertical Systems Group credited Zayo's May 2026 acquisition of Crown Castle's Fiber Solutions business for Zayo's move. * Today, Zayo's network spans 32 million fiber miles and 224,000 route miles across North America. DENVER - Zayo, the leading digital network infrastructure provider, ranks No. 6 on Vertical Systems Group's Mid-2026 U.S. Carrier Ethernet LEADERBOARD, moving up from the Challenge Tier after acquiring Crown Castle's Fiber Solutions business, the deal Vertical Systems Group cited for the move. What is the U.S. Carrier Ethernet LEADERBOARD? The LEADERBOARD is Vertical Systems Group's ranking of U.S. Carrier Ethernet providers based on retail port share as of June 30, 2026. Providers are required to have 4% or more of the U.S. retail Ethernet services market to qualify for the LEADERBOARD, while providers with between 1% and 4% market share are included in the Challenge Tier. How did Zayo move up to No. 6? Zayo closed its acquisition of Crown Castle's Fiber Solutions business in May 2026, expanding Zayo's metro footprint and enterprise reach across the U.S. "AI and cloud growth depend on the networks that connect them," said Sowmyanarayan Sampath, CEO of Zayo. "Our move onto the LEADERBOARD reflects the scale of Zayo's digital infrastructure assets and our ability to put capacity where demand is today and where it's headed in the future." What did the Crown Castle Fiber Solutions deal add to Zayo? Crown Castle's Fiber Solutions business added approximately 90,000 metro route miles and approximately 40,000 on-net enterprise locations to the Zayo network. The combined network spans 32 million fiber miles and 224,000 route miles across North America, expanding Zayo's metro reach and density alongside its extensive long-haul network. Seven providers qualified for the Mid-2026 LEADERBOARD with at least 4% of the U.S. retail Ethernet services market. Where can enterprises learn more about Zayo Ethernet? Vertical Systems Group's U.S. Carrier Ethernet LEADERBOARD ranks providers based on the number of billable retail customer ports installed across six service segments: Ethernet Dedicated Internet Access (DIA), E-Access to IP/MPLS VPN, Ethernet Private Lines, Ethernet Virtual Private Lines, Metro LAN, and WAN VPLS. To learn more about Zayo's Ethernet solutions, visit: https://www.zayo.com/services/network-connectivity/ethernet/ About Zayo The world's digital future depends on networks that perform. Zayo builds and operates those networks. As the leading digital network infrastructure provider, the Zayo network spans 32 million fiber miles and 224,000 route miles across North America and connects more than 400 markets globally. With dense long-haul and metro fiber connectivity, tailored connectivity solutions, and managed services, Zayo's network underpins the cloud, AI, and enterprise platforms powering the digital economy. Carriers, cloud providers, data centers, enterprises, schools, and governments rely on Zayo's future-ready infrastructure and expertise to design, scale, and operate the networks that connect what's next. Discover how Zayo connects what's next at www.zayo.com and follow Data Center Catalog on LinkedIn. View source version on businesswire.com: https://www.businesswire.com/news/home/20261015275528/en/ Contacts Zayo Media Contact Jennifer Gordon [email protected]. Find Data Center

INCOMPAS announces Zayo CEO Sowmyanarayan Sampath as keynote speaker for The 2026 INCOMPAS Show. WASHINGTON, D.C. - October 13, 2026 - INCOMPAS, the competitive communications and AI infrastructure association, announced today that that Sowmyanarayan Sampath, CEO of Zayo Group, will deliver a keynote address at The 2026 INCOMPAS Show, taking place November 1-3 at the Omni Nashville Hotel in Nashville, Tenn. "Few leaders understand the scale and urgency of today's infrastructure buildout like Sowmyanarayan Sampath," said INCOMPAS CEO Chip Pickering. "Over more than two decades, he has led some of the largest and most complex businesses in our industry, from Verizon's Consumer and Business groups to now Zayo, North America's leading digital infrastructure provider. As AI and cloud computing push demand for fiber, data centers and next-generation networks to new heights, his insight into how operators and investors should navigate this moment is invaluable. We are honored to welcome Sowmyanarayan to the INCOMPAS Show stage and know our audience will benefit greatly from his perspective." The INCOMPAS Show is the premier gathering for companies building, operating and investing in the communications and digital infrastructure ecosystem. The annual event attracts senior executives and key decision makers from communications, networking, cloud, infrastructure and technology companies who are shaping investment, partnership and growth strategies across the industry.

Zayo names Mariana Agathoklis Schlock Executive Vice President, Chief Communications & Marketing Officer. Zayo has appointed Mariana Agathoklis Schlock as its first-ever Executive Vice President and Chief Communications & Marketing Officer (CCMO), bringing communications, marketing and environmental, social and governance (ESG) functions under a unified leadership structure. Schlock will report to Zayo CEO Sowmyanarayan Sampath and oversee the company's integrated communications, marketing and ESG teams. Her role will focus on strengthening brand positioning, market visibility and engagement with customers, employees, investors, industry partners and communities. The appointment comes as growing demand for artificial intelligence infrastructure puts increased attention on the networks supporting cloud computing, enterprise platforms and AI applications. Zayo is positioning its communications and marketing strategy around these changing infrastructure requirements and the needs of businesses adopting AI technologies. Schlock joins Zayo after nearly nine years at Verizon, where she held senior positions across consumer, business, media and corporate functions. Most recently, she served as Head of Communications for Verizon Consumer, a business unit generating approximately $100 billion in annual revenue. During her tenure at Verizon, she contributed to several major brand and commercial initiatives, including the public launch of 5G, Verizon Business Small Business Days and the Verizon Family campaign. Before Verizon, Schlock spent 12 years at MTV, leading communications initiatives across corporate, brand, programming and digital operations. Her experience spans corporate reputation, customer engagement, brand strategy and communications during periods of business transformation. At Zayo, the combination of marketing, communications and ESG responsibilities under one executive reflects a consolidated approach to corporate messaging and stakeholder engagement. As AI adoption increases demand for digital infrastructure, the company will need to communicate its role in supporting enterprises, cloud providers and data center operators navigating this shift. Schlock's appointment adds a senior communications and marketing leader to Zayo's executive team as the company responds to evolving infrastructure needs across the digital economy.