| Company | Category | Area | Address | Web | E-mail | Contact person |
| X O COMMUNICATIONS INC | Telephone Companies | Colorado | 1660 LINCOLN ST STE 2600, DENVER, Denver, Colorado, 80264-2601, USA |
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Derek Sandhoff |
| X O COMMUNICATIONS INC | Telephone Companies | California | 1 FRONT ST, SAN FRANCISCO, San Francisco, California, 94111-5325, USA |
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| X O COMMUNICATIONS INC | Telecommunications Services | Georgia | 3500 PIEDMONT RD NE, ATLANTA, Fulton, Georgia, 30305-1507, USA |
www.allegiancetele.com |
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Greg Cooper |
| X O COMMUNICATIONS INC | Telecommunications Services | Ohio | 3 SUMMIT PARK DR STE 750, CLEVELAND, Cuyahoga, Ohio, 44131-6966, USA |
www.algx.com |
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Ed Graham |
| X O COMMUNICATIONS INC | Telephone Companies | Maryland | 3 BETHESDA METRO CTR # B001, BETHESDA, Montgomery, Maryland, 20814-5330, USA |
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| X O COMMUNICATIONS INC | Communications | Michigan | 7020 MIDDLEBELT RD, W BLOOMFIELD, Oakland, Michigan, 48322-4133, USA |
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| X O COMMUNICATIONS INC | Telecommunications Consultants | Oregon | 9000 SW NIMBUS AVE, BEAVERTON, Washington, Oregon, 97008-7181, USA |
www.xo.com |
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Todd Harman |
| X O COMMUNICATIONS INC | Telecommunications Services | Pennsylvania | 600 LARCH ST, SCRANTON, Lackawanna, Pennsylvania, 18509-2420, USA |
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| X O COMMUNICATIONS INC | Telephone Companies | California | 855 MISSION CT, FREMONT, Alameda, California, 94539-8205, USA |
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Barry Reynolds |
| X O COMMUNICATIONS INC | Telephone Companies | Texas | 2100 S IH 35, AUSTIN, Travis, Texas, 78704-4435, USA |
www.xo.com |
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Coy Highsmith |
