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Area Codes > 303 > Central Office Codes

Exchange Rate Center State Operating Company
303-701 DENVER CO COMMUNICATIONS UNLIMITED
303-702 LONGMONT CO QWEST CORPORATION
303-703 DENVER CO QWEST CORPORATION
303-704 DENVER CO MCIMETRO, ATS, INC.
303-705 DENVER CO QWEST CORPORATION
303-706 DENVER CO QWEST CORPORATION
303-707 DENVER CO QWEST CORPORATION
303-708 DENVER CO QWEST CORPORATION
303-709 LONGMONT CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-710 FORTLUPTON CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-711 CO
303-712 DENVER CO QWEST CORPORATION
303-713 DENVER CO QWEST CORPORATION
303-714 DENVER CO QWEST CORPORATION
303-715 DENVER CO QWEST CORPORATION
303-716 DENVER CO QWEST CORPORATION
303-717 FORTLUPTON CO BLUE LICENSES HOLDING, LLC
303-718 FORTLUPTON CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-719 DEER TRAIL CO YMAX COMMUNICATIONS CORP. - CO
303-720 FORTLUPTON CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-721 DENVER CO QWEST CORPORATION
303-722 DENVER CO QWEST CORPORATION
303-723 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-724 AURORA CO QWEST CORPORATION
303-725 DENVER CO SPRINT SPECTRUM L.P.
303-726 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-727 DENVER CO QWEST CORPORATION
303-728 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-729 DENVER CO MCIMETRO, ATS, INC.
303-730 DENVER CO QWEST CORPORATION
303-731 AURORA CO LEVEL 3 COMMUNICATIONS, LLC - CO
303-732 KEENESBURG CO QWEST CORPORATION
303-733 DENVER CO QWEST CORPORATION
303-734 DENVER CO QWEST CORPORATION
303-735 DENVER CO QWEST CORPORATION
303-736 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-737 DENVER CO QWEST CORPORATION
303-738 DENVER CO QWEST CORPORATION
303-739 AURORA CO QWEST CORPORATION
303-740 DENVER CO QWEST CORPORATION
303-741 DENVER CO QWEST CORPORATION
303-742 DENVER CO QWEST CORPORATION
303-743 DENVERSLVN CO QWEST CORPORATION
303-744 DENVER CO QWEST CORPORATION
303-745 DENVERSLVN CO QWEST CORPORATION
303-746 LONGMONT CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-747 ALLNSPKLYN CO QWEST CORPORATION
303-748 DENVER CO BLUE LICENSES HOLDING, LLC
303-749 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-750 DENVERSLVN CO QWEST CORPORATION
303-751 DENVERSLVN CO QWEST CORPORATION
303-752 DENVERSLVN CO QWEST CORPORATION
303-753 DENVER CO QWEST CORPORATION
303-754 DENVER CO QWEST CORPORATION
303-755 DENVERSLVN CO QWEST CORPORATION
303-756 DENVER CO QWEST CORPORATION
303-757 DENVER CO QWEST CORPORATION
303-758 DENVER CO QWEST CORPORATION
303-759 DENVER CO QWEST CORPORATION
303-760 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-761 DENVER CO QWEST CORPORATION
303-762 DENVER CO QWEST CORPORATION
303-763 DENVER CO QWEST CORPORATION
303-764 DENVER CO QWEST CORPORATION
303-765 DENVER CO QWEST CORPORATION
303-766 DENVER CO QWEST CORPORATION
303-767 DENVER CO CONTACT PAGING OF COLORADO, INC.
303-768 DENVER CO QWEST CORPORATION
303-769 DEER TRAIL CO BIJOU TELEPHONE COOPERATIVE ASSOCIATION, INC.
303-770 DENVER CO QWEST CORPORATION
303-771 DENVER CO QWEST CORPORATION
303-772 LONGMONT CO QWEST CORPORATION
303-773 DENVER CO QWEST CORPORATION
303-774 LONGMONT CO QWEST CORPORATION
303-775 LONGMONT CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-776 LONGMONT CO QWEST CORPORATION
303-777 DENVER CO QWEST CORPORATION
303-778 DENVER CO QWEST CORPORATION
303-779 DENVER CO QWEST CORPORATION
303-780 DENVER CO QWEST CORPORATION
303-781 DENVER CO QWEST CORPORATION
303-782 DENVER CO QWEST CORPORATION
303-783 DENVER CO QWEST CORPORATION
303-784 DENVER CO QWEST CORPORATION
303-785 DENVERSLVN CO XO COLORADO, LLC
303-786 DENVER CO QWEST CORPORATION
303-787 DENVER CO QWEST CORPORATION
303-788 DENVER CO QWEST CORPORATION
303-789 DENVER CO QWEST CORPORATION
303-790 DENVER CO QWEST CORPORATION
303-791 DENVER CO QWEST CORPORATION
303-792 DENVER CO QWEST CORPORATION
303-793 DENVER CO QWEST CORPORATION
303-794 DENVER CO QWEST CORPORATION
303-795 DENVER CO QWEST CORPORATION
303-796 DENVER CO QWEST CORPORATION
303-797 DENVER CO QWEST CORPORATION
303-798 DENVER CO QWEST CORPORATION
303-799 DENVER CO QWEST CORPORATION
303-800 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO