Zayo Group

Zayo Group is a communications infrastructure provider that delivers fiber-based connectivity, bandwidth, and related network services to enterprises, carriers, and cloud and content platforms.

• Fiber-based network infrastructure and dark fiber services (network connectivity)
• Wavelengths, Ethernet, and IP-based services for high-capacity data transport (network transport)
• Data center and colocation facilities integrated with metro and long-haul fiber (data center infrastructure)
• Cloud connectivity services linking enterprise sites to major cloud platforms (cloud networking)
• Managed and professional services around network design, performance, and monitoring (managed network services)

More About Zayo Group

Zayo Group provides communications infrastructure for enterprise, carrier, public sector, and cloud and content provider environments, with a focus on fiber connectivity and high-bandwidth transport. Its network footprint spans metro and long-haul routes across multiple regions, designed to support traffic between data centers, corporate sites, internet exchanges, and cloud on-ramps. Organizations use Zayo to interconnect critical workloads, support latency-sensitive applications, and provision scalable bandwidth as part of their core network architecture.

The company’s portfolio centers on lit and dark fiber services (network connectivity), including dedicated fiber routes that enterprises and carriers can light with their own equipment, as well as lit Ethernet and IP services (network transport) delivered over Zayo-operated infrastructure. These offerings typically integrate standard networking protocols such as Ethernet, Multiprotocol Label Switching (MPLS), and IP, and they are used in designs that require predictable bandwidth and route control. Customers deploy these services for site-to-site connectivity, Data Center Interconnect (DCI), and backbone augmentation alongside their existing Wide Area Network (WAN) and internet connectivity strategies.

Zayo also offers wavelength services (optical transport) that provide high-capacity, point-to-point optical circuits over its dense fiber network. These services rely on common optical networking technologies such as Dense Wavelength Division Multiplexing (DWDM) and are used by enterprises, content providers, and carriers to move large data volumes between key locations. In this role, Zayo functions as an underlying transport provider that can be layered under VPNs, Software-Defined Wide Area Network (SD-WAN) overlays, and other customer-managed network services.

Data center and colocation services (data center infrastructure) form another part of Zayo’s portfolio, with facilities typically located adjacent to or integrated with its fiber routes. Enterprises and service providers use these locations for equipment housing, interconnection, and access to cloud on-ramps and other networks. Cloud connectivity offerings (cloud networking) provide private or dedicated connections from customer environments into major public cloud platforms, suitable for hybrid and multi-cloud architectures that require predictable performance compared with public internet access.

To support planning and operations, Zayo provides managed and professional services (managed network services) that cover network design, provisioning, performance monitoring, and incident response. In many enterprise environments, Zayo’s services appear as underlay connectivity in conjunction with SD-WAN, security stacks, and cloud networking platforms from other vendors. In a directory or marketplace context, Zayo Group fits within categories such as network connectivity, optical transport, data center infrastructure, and cloud on-ramp and interconnection services used by network and infrastructure teams to assemble end-to-end architectures.