Cogent is XO Communications's biggest rival. Cogent was founded in 1999, and is headquartered in Washington, District of Columbia. Like XO Communications, Cogent also works within the Telecommunications sector. Cogent generates $663.9M less revenue vs. XO Communications.
Flowroute is one of XO Communications's top competitors. Flowroute's headquarters is in Seattle, Washington, and was founded in 2007. Like XO Communications, Flowroute also works within the Telecommunication Services sector. Flowroute generates 0.47% of XO Communications's revenue.