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Area Codes > 203 > Central Office Codes

Exchange Rate Center State Operating Company
203-711 CT
203-712 HUNTINGTON CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-713 MILFORD CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-714 NAUGATUCK CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-715 MERIDEN CT OMNIPOINT COMMUNICATIONS, INC. - CT
203-716 NEW CANAAN CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-717 NORWALK CT GEOTEK COMMUNICATIONS, INC.
203-718 CHESHIRE CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-719 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-720 NAUGATUCK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-721 WATERBURY CT AT&T LOCAL
203-722 NORWALK CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-723 NAUGATUCK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-724 STAMFORD CT CHOICE ONE COMMUNICATIONS, INC. - CT
203-725 WATERBURY CT COX CONNECTICUT TELECOM, LLC
203-726 BRIDGEPORT CT AQUIS COMMUNICATIONS, INC.
203-727 BRIDGEPORT CT SPRINT SPECTRUM L.P.
203-728 STAMFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-729 NAUGATUCK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-730 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-731 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-732 ANSONIDRBY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-733 DANBURY CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-734 ANSONIDRBY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-735 ANSONIDRBY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-736 ANSONIDRBY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-737 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-738 GUILFORD CT CHOICE ONE COMMUNICATIONS, INC. - CT
203-739 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-740 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-741 WALLINGFD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-742 GREENWICH CT BROOKS FIBER COMMUNICATIONS - CONNECTICUT
203-743 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-744 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-745 NEW HAVEN CT SBC INTERNET SERVICES, INC.
203-746 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-747 NEW HAVEN CT TELEPORT COMMUNICATIONS GROUP - NEW YORK - CT
203-748 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-749 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-750 NORWALK CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-751 ANSONIDRBY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-752 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-753 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-754 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-755 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-756 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-757 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-758 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-759 WATERBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-760 NORWALK CT ARCH WIRELESS HOLDINGS, INC.
203-761 WILTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-762 WILTON CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-763 FAIRFIELD CT LEVEL 3 COMMUNICATIONS, LLC - CT
203-764 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-765 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-766 NEW HAVEN CT AMERICAN MESSAGING (AM), INC.
203-767 BRIDGEPORT CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-768 WATERBURY CT OMNIPOINT COMMUNICATIONS, INC. - CT
203-769 GREENWICH CT VERIZON NEW YORK, INC.
203-770 DANBURY CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-771 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-772 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-773 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-774 WALLINGFD CT CHOICE ONE COMMUNICATIONS, INC. - CT
203-775 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-776 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-777 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-778 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-779 MADISON CT CHOICE ONE COMMUNICATIONS, INC. - CT
203-780 WATERBURY CT ARCH WIRELESS HOLDINGS, INC.
203-781 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-782 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-783 MILFORD CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-784 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-785 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-786 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-787 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-788 DANBURY CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-789 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-790 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-791 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-792 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-793 WALLINGFD CT GLOBAL CROSSING LOCAL SERVICES, INC.-CT
203-794 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-795 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-796 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-797 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-798 DANBURY CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-799 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-801 NEW CANAAN CT SOUTHERN NEW ENGLAND TELEPHONE CO.
203-803 NORWALK CT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT
203-804 NEW HAVEN CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-805 WATERBURY CT TELEPORT COMMUNICATIONS GROUP - NEW YORK - CT
203-806 CHESHIRE CT TELEPORT COMMUNICATIONS GROUP - NEW YORK - CT
203-807 NORWALK CT NEW CINGULAR WIRELESS PCS, LLC - MA
203-808 WATERBURY CT OMNIPOINT COMMUNICATIONS, INC. - CT
203-809 NEW HAVEN CT OMNIPOINT COMMUNICATIONS, INC. - CT
203-810 NORWALK CT CABLEVISION LIGHTPATH, INC. - CT
203-811 CT
203-812 NEW HAVEN CT SOUTHERN NEW ENGLAND TELEPHONE CO.