XO Communications, LLC (previously Nextlink Communications, Concentric Network Corporation and Allegiance Telecom, Inc.) was an American

telecommunications Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...

company. Before being purchased by and later absorbed by

Verizon Communications Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average. The company is headquartered at 1095 Avenue of the Americas i ...

. XO provided managed and converged Internet Protocol (IP) network services for small and medium-sized enterprises. XO delivered services through a mix of fiber-based Ethernet and Ethernet over Copper (EoC). In addition, the company had external network-to-network interface (E-NNI) agreements with traditional carriers and cable companies.

Acquisition by Verizon Communications

In a news release dated February 22, 2016,

Verizon Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average. The company is headquartered at 1095 Avenue of the Americas in ...

announced plans to acquire XO Communications' "fiber-optic network business." In 2017, Verizon completed its $1.8 billion acquisition of XO Communications. As of summer 2020 all XO services have been migrated to Verizon.

References

Companies based in Fairfax County, Virginia Telecommunications companies of the United States Transit-free networks Telecommunications companies established in 1996 American companies established in 1996 1996 establishments in Washington (state) Herndon, Virginia Verizon Communications acquisitions 2017 mergers and acquisitions {{US-telecom-company-stub