XO Communications

XO Communications is a U.S.-based provider of network and communications infrastructure services for enterprises and carriers.

• IP-based networking services for enterprise Wide Area Network (WAN) and internet connectivity (networking)
• Ethernet and private line services for site-to-site and data center connectivity (networking)
• Voice and unified communications offerings for business telephony (communications)
• Wholesale network services for carriers and service providers (networking)
• Managed network and connectivity solutions for multi-location organizations (managed network services)

More About XO Communications

XO Communications focuses on providing network and communications services that support enterprise, wholesale, and carrier-grade connectivity requirements. Its portfolio centers on IP-based data networking, Ethernet transport, and business voice services that enterprises use to connect headquarters, branches, data centers, and cloud endpoints. These services target organizations that require predictable performance, defined service-level commitments, and integration with existing WAN and telephony architectures.

In enterprise environments, XO Communications’ IP and Ethernet services (networking) are typically used as underlay transport for VPNs, Software-Defined Wide Area Network (SD-WAN) overlays, and private connectivity to data centers or cloud on-ramps. Network architects use these services to design hybrid WAN topologies that combine internet access, private Ethernet, and other access types to balance cost, performance, and redundancy. The company’s offerings align with standard networking protocols such as Border Gateway Protocol (BGP), Multiprotocol Label Switching (MPLS), and Ethernet standards defined by IEEE for layer 2 and layer 3 connectivity, depending on the specific service configuration.

XO Communications also provides voice and unified communications services (communications) intended to integrate with enterprise PBXs, SIP-based IP telephony systems, and contact center platforms. These services typically rely on Session Initiation Protocol (SIP) trunking, Decentralized Identity (DID) provisioning, and interoperability with common enterprise telephony protocols and codecs. Enterprises deploy such services to consolidate voice traffic over IP networks, manage numbering plans across multiple sites, and coordinate voice connectivity with Disaster Recovery (DR) and business continuity strategies.

For carriers and wholesale customers, XO Communications offers network capacity and transport services (networking) that support backhaul, interconnection, and resale scenarios. These services are positioned for organizations that need access to fiber-based connectivity, regional coverage, or additional network paths to augment their own infrastructure. In this context, XO functions as a network infrastructure provider that supplies transport and IP transit capabilities.

Within an enterprise technology directory or marketplace taxonomy, XO Communications can be categorized under network connectivity providers, business internet and WAN services, Ethernet and private line transport, and enterprise voice and unified communications carriers. Its offerings align with solution areas such as enterprise networking (WAN, internet access, Ethernet), communications (SIP trunking, business voice), and managed network services, and are typically evaluated alongside other telecommunications and network service providers based on coverage, service catalog, performance characteristics, and integration with customer network architectures.