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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