Area Codes > 303 > Central Office Codes
Exchange | Rate Center | State | Operating Company |
---|---|---|---|
303-801 | DENVER | CO | MCIMETRO, ATS, INC. |
303-802 | DENVER | CO | MCIMETRO, ATS, INC. |
303-803 | DENVER | CO | TIME WARNER TELECOM OF COLORADO LLC-CO |
303-804 | DENVER | CO | QWEST CORPORATION |
303-805 | DENVER | CO | QWEST CORPORATION |
303-806 | DENVER | CO | QWEST CORPORATION |
303-807 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-808 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-809 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-810 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-811 | CO | ||
303-812 | DENVER | CO | QWEST CORPORATION |
303-813 | DENVER | CO | QWEST CORPORATION |
303-814 | DENVER | CO | QWEST CORPORATION |
303-815 | DENVER | CO | INTERLINK ADV SVC D/B/A FORETHOUGHT.NET - CO |
303-816 | DECKERS | CO | QWEST CORPORATION |
303-817 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-818 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-819 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-820 | DENVER | CO | QWEST CORPORATION |
303-821 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-822 | BYERS | CO | BIJOU TELEPHONE COOPERATIVE ASSOCIATION, INC. |
303-823 | ALLNSPKLYN | CO | QWEST CORPORATION |
303-824 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-825 | DENVER | CO | QWEST CORPORATION |
303-826 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-827 | LONGMONT | CO | ICG TELECOM GROUP - CO |
303-828 | DENVER | CO | QWEST CORPORATION |
303-829 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-830 | DENVER | CO | QWEST CORPORATION |
303-831 | DENVER | CO | QWEST CORPORATION |
303-832 | DENVER | CO | QWEST CORPORATION |
303-833 | DENVER | CO | QWEST CORPORATION |
303-834 | LONGMONT | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-835 | BRIGHTON | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
303-836 | DENVER | CO | COMMUNICATIONS UNLIMITED |
303-837 | DENVER | CO | QWEST CORPORATION |
303-838 | DECKERS | CO | QWEST CORPORATION |
303-839 | DENVER | CO | QWEST CORPORATION |
303-840 | DENVER | CO | QWEST CORPORATION |
303-841 | DENVER | CO | QWEST CORPORATION |
303-842 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-843 | DENVER | CO | QWEST CORPORATION |
303-844 | DENVER | CO | QWEST CORPORATION |
303-845 | LONGMONT | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-846 | DENVER | CO | QWEST CORPORATION |
303-847 | DENVER | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
303-848 | LONGMONT | CO | ICG TELECOM GROUP - CO |
303-849 | ROGGEN | CO | ROGGEN TELEPHONE COOPERATIVE CO. |
303-850 | DENVER | CO | QWEST CORPORATION |
303-851 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-852 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-853 | DENVER | CO | QWEST CORPORATION |
303-854 | DENVER | CO | ICG TELECOM GROUP - CO |
303-855 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-856 | AURORA | CO | ICG TELECOM GROUP - CO |
303-857 | FORTLUPTON | CO | QWEST CORPORATION |
303-858 | DENVER | CO | QWEST CORPORATION |
303-859 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-860 | DENVER | CO | QWEST CORPORATION |
303-861 | DENVER | CO | QWEST CORPORATION |
303-862 | DENVER | CO | COMCAST PHONE OF COLORADO, LLC - CO |
303-863 | DENVER | CO | QWEST CORPORATION |
303-864 | DENVER | CO | QWEST CORPORATION |
303-865 | DENVER | CO | ICG TELECOM GROUP - CO |
303-866 | DENVER | CO | QWEST CORPORATION |
303-867 | DENVER | CO | ILOKA, INC. DBA MICROTECH-TEL - CO |
303-868 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-869 | DENVER | CO | QWEST CORPORATION |
303-870 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-871 | DENVER | CO | QWEST CORPORATION |
303-872 | DENVERSLVN | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
303-873 | DENVERSLVN | CO | QWEST CORPORATION |
303-874 | AURORA | CO | ICG TELECOM GROUP - CO |
303-875 | DENVER | CO | T-MOBILE USA, INC. |
303-876 | DENVER | CO | MCIMETRO, ATS, INC. |
303-877 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-878 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-879 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-880 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-881 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-882 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-883 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-884 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-885 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-886 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-887 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-888 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-889 | DENVER | CO | QWEST CORPORATION |
303-890 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-891 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-892 | DENVER | CO | QWEST CORPORATION |
303-893 | DENVER | CO | QWEST CORPORATION |
303-894 | DENVER | CO | QWEST CORPORATION |
303-895 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-896 | DENVER | CO | QWEST CORPORATION |
303-897 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-898 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-899 | DENVER | CO | QWEST CORPORATION |
303-900 | GEORGETOWN | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |