720 Area Code has 483 prefixes

PrefixPrimary CityCarrier
720-851ParkerQwest Corporation
720-852EnglewoodQwest Corporation
720-854BoulderQwest Corporation
720-855DenverQwest Corporation
720-857AuroraQwest Corporation
720-858AuroraQwest Corporation
720-859AuroraQwest Corporation
720-862DenverXo Colorado, Llc
720-863EnglewoodXo Colorado, Llc
720-864LongmontQwest Corporation
720-865DenverIcg Telecom Group - Co
720-870AuroraQwest Corporation
720-872DenverQwest Corporation
720-873EnglewoodQwest Corporation
720-874EnglewoodQwest Corporation
720-875EnglewoodQwest Corporation
720-876AuroraQwest Corporation
720-877DenverIcg Telecom Group - Co
720-878DenverIcg Telecom Group - Co
720-879EnglewoodIcg Telecom Group - Co
720-880DenverIcg Telecom Group - Co
720-881DenverIcg Telecom Group - Co
720-882DenverIcg Telecom Group - Co
720-883DenverIcg Telecom Group - Co
720-884DenverQwest Corporation
720-885DenverNew Cingular Wireless Pcs, Llc
720-886AuroraQwest Corporation
720-887BroomfieldQwest Corporation
720-889EnglewoodXo Colorado, Llc
720-890LafayetteQwest Corporation
720-891DenverLevel 3 Communications, Llc - Co
720-895EnglewoodQwest Corporation
720-897DenverGlobal Crossing Local Services, Inc.-co
720-898ArvadaQwest Corporation
720-903DenverGlobal Crossing Local Services, Inc.-co
720-904DenverQwest Corporation
720-907DenverGlobal Crossing Local Services, Inc.-co
720-913DenverIcg Telecom Group - Co
720-917DenverQwest Corporation
720-920AuroraTeleport Communications America, Llc - Co
720-921DenverIcg Telecom Group - Co
720-922LittletonQwest Corporation
720-924DenverQwest Corporation
720-929DenverQwest Corporation
720-931DenverQwest Corporation
720-932DenverQwest Corporation
720-933DenverT-mobile Usa, Inc.
720-934DenverT-mobile Usa, Inc.
720-935DenverT-mobile Usa, Inc.
720-936DenverT-mobile Usa, Inc.
720-937DenverT-mobile Usa, Inc.
720-938DenverT-mobile Usa, Inc.
720-939DenverT-mobile Usa, Inc.
720-940EnglewoodSprint Spectrum L.p.
720-941DenverQwest Corporation
720-943DenverGlobal Crossing Local Services, Inc.-co
720-944DenverQwest Corporation
720-945DenverQwest Corporation
720-946DenverQwest Corporation
720-947DenverQwest Corporation
720-949DenverAt&t Local
720-951WestminsterCellco Partnership Dba Verizon Wireless - Co
720-956DenverQwest Corporation
720-961DenverLevel 3 Communications, Llc - Co
720-962DenverQwest Corporation
720-963DenverQwest Corporation
720-965DenverT-mobile Usa, Inc.
720-971EnglewoodSprint Spectrum L.p.
720-972DenverQwest Corporation
720-974DenverEschelon Telecom Of Colorado, Inc. - Co
720-975DenverEschelon Telecom Of Colorado, Inc. - Co
720-977DenverQwest Corporation
720-979EnglewoodSprint Spectrum L.p.
720-980DenverSprint Spectrum L.p.
720-981LittletonQwest Corporation
720-982EnglewoodSprint Spectrum L.p.
720-984EnglewoodSprint Spectrum L.p.
720-985EnglewoodSprint Spectrum L.p.
720-987EnglewoodSprint Spectrum L.p.
720-988EnglewoodSprint Spectrum L.p.
720-989EnglewoodSprint Spectrum L.p.
720-998DenverComcast Phone Of Colorado, Llc - Co
720-999DenverT-mobile Usa, Inc.