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en.wikipedia.org/wiki/XO_Communications

XO Communications (previously Nextlink Communications, Concentric Network Corporation and Allegiance Telecom, Inc. is a telecommunications company owned by XO Holdings, Inc (OTCBB: XOHO). XO provides managed and converged Internet Protocol (IP) network services ... Jump up ^ "XO Communications, LLC". www.bloomberg.com.

www.xo.com

XO owns and operates one of the largest IP and Ethernet networks that customers ... unified communications and voice, Internet access and managed services ...

www.xo.com/about-xo

We are passionate about enhancing the way companies work and ...

www.xo.com/contact-us

Contact XO today about your service, support and consultation needs.

www.consumeraffairs.com/cell_phones/allegiance.html

133 XO Communications Consumer Reviews and Complaints .... call was from a not so nice guy named Joseph ** from Arbitrary Services about allegations.

www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=4955271

XO Communications, LLC owns and operates IP and Ethernet networks. It offers networking services, such as bandwidth on demand, wide area networking, ...

www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=93548

The company offers broadband services, including Internet protocol (IP) Flex, dedicated Internet ... XO Communications has launched Distributed Denial of Service (DDoS) Mitigation Service as part ... 186 Communications, LLC, United States ...

www.linkedin.com/company/xo-communications

See who you know at XO Communications, leverage your professional network, ... unified communications and voice, Internet access, and managed services.

www.crunchbase.com/organization/xo-communications

XO Communications, LLC owns and operates an integrated fiber optic network that provides telecommunications services in the United States markets.