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Area Codes > 603 > Central Office Codes

Exchange Rate Center State Operating Company
603-719 KEENE NH FREEDOM RING COMMUNICATIONS, LLC
603-720 RINDGE NH GLOBAL NAPS, INC. - NH
603-721 MILFORD NH SPRINT SPECTRUM L.P. - NH
603-722 MANCHESTER NH BANDWIDTH.COM CLEC, LLC - NH
603-723 BERLIN NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-724 CONCORD NH PAETEC COMMUNICATIONS, INC. - NH
603-725 TAMWORTH NH LEVEL 3 COMMUNICATIONS - NH
603-726 CAMPTON NH VERIZON NEW ENGLAND INC.
603-727 LEBANON NH LIGHTSHIP TELECOM, LLC - NH
603-728 NOWOODSTOK NH LEVEL 3 COMMUNICATIONS - NH
603-729 TILTON NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-730 NO CONWAY NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-731 CONCORD NH BELL ATLANTIC NYNEX MOBILE
603-732 MILFORD NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-733 NO CONWAY NH LEVEL 3 COMMUNICATIONS - NH
603-734 EPPING NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-735 ANDOVER NH KEARSARGE TELEPHONE CO.
603-736 EPSOM NH VERIZON NEW ENGLAND INC.
603-737 LACONIA NH FREEDOM RING COMMUNICATIONS, LLC
603-738 CONCORD NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-739 NOWOODSTOK NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-740 DOVER NH VERIZON NEW ENGLAND INC.
603-741 NEW BOSTON NH RNK, INC.
603-742 DOVER NH VERIZON NEW ENGLAND INC.
603-743 DOVER NH VERIZON NEW ENGLAND INC.
603-744 BRISTOL NH VERIZON NEW ENGLAND INC.
603-745 NOWOODSTOK NH VERIZON NEW ENGLAND INC.
603-746 CONTOOCOOK NH MERRIMACK COUNTY TELEPHONE CO.
603-747 WOODSVILLE NH VERIZON NEW ENGLAND INC.
603-748 WARNER NH BELL ATLANTIC NYNEX MOBILE
603-749 DOVER NH VERIZON NEW ENGLAND INC.
603-750 DOVER NH VERIZON NEW ENGLAND INC.
603-751 PELHAM NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-752 BERLIN NH VERIZON NEW ENGLAND INC.
603-753 PENACOOK NH VERIZON NEW ENGLAND INC.
603-754 LANCASTER NH FREEDOM RING COMMUNICATIONS, LLC
603-755 FARMINGTON NH VERIZON NEW ENGLAND INC.
603-756 WALPOLE NH VERIZON NEW ENGLAND INC.
603-757 KEENE NH LIGHTSHIP TELECOM, LLC - NH
603-758 HAMPTON NH CHOICE ONE OF NEW HAMPSHIRE, INC.
603-759 NASHUA NH BELL ATLANTIC NYNEX MOBILE
603-760 SEABROOK NH AT&T LOCAL
603-761 LITTLETON NH FREEDOM RING COMMUNICATIONS, LLC
603-762 KEENE NH RURAL CELLULAR CORPORATION
603-763 SUNAPEE NH VERIZON NEW ENGLAND INC.
603-764 WARREN NH VERIZON NEW ENGLAND INC.
603-765 NASHUA NH NEXTEL COMMUNICATIONS, INC.
603-766 PORTSMOUTH NH FREEDOM RING COMMUNICATIONS, LLC
603-767 DOVER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-768 DANBURY NH VERIZON NEW ENGLAND INC.
603-769 MILFORD NH LEVEL 3 COMMUNICATIONS - NH
603-770 EXETER NH BELL ATLANTIC NYNEX MOBILE
603-771 MANCHESTER NH VERIZON NEW ENGLAND INC.
603-772 EXETER NH VERIZON NEW ENGLAND INC.
603-773 EXETER NH VERIZON NEW ENGLAND INC.
603-774 DUNBARTON NH DUNBARTON TELEPHONE CO.
603-775 EXETER NH VERIZON NEW ENGLAND INC.
603-776 BARNSTEAD NH UNION TELEPHONE CO. - NH
603-777 EXETER NH VERIZON NEW ENGLAND INC.
603-778 EXETER NH VERIZON NEW ENGLAND INC.
603-779 PLYMOUTH NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-780 CANAAN NH LEVEL 3 COMMUNICATIONS - NH
603-781 DOVER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-782 MANCHESTER NH LEVEL 3 COMMUNICATIONS - NH
603-783 CANTERBURY NH VERIZON NEW ENGLAND INC.
603-784 PETERBROGH NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-785 MANCHESTER NH NEW CINGULAR WIRELESS PCS, LLC - MA
603-786 RUMNEY NH VERIZON NEW ENGLAND INC.
603-787 WOODSVILLE NH VERIZON NEW ENGLAND INC.
603-788 LANCASTER NH VERIZON NEW ENGLAND INC.
603-789 DANBURY NH FREEDOM RING COMMUNICATIONS, LLC
603-790 W LEBANON NH RNK, INC.
603-791 NASHUA NH VERIZON NEW ENGLAND INC.
603-792 MANCHESTER NH FREEDOM RING COMMUNICATIONS, LLC
603-793 EXETER NH SPRINT SPECTRUM L.P. - NH
603-794 PLYMOUTH NH GLOBAL NAPS, INC. - NH
603-795 LYME NH VERIZON NEW ENGLAND INC.
603-796 BOSCAWEN NH KEARSARGE TELEPHONE CO.
603-797 PLAISTOW NH BROOKS FIBER COMMUNICATIONS - NEW HAMPSHIRE
603-798 CHICHESTER NH KEARSARGE TELEPHONE CO.
603-799 MANCHESTER NH SPRINT SPECTRUM L.P. - NH
603-801 MILFORD NH BELL ATLANTIC NYNEX MOBILE
603-804 MILFORD NH GLOBAL NAPS, INC. - NH
603-805 SO HAMPTON NH GLOBAL NAPS, INC. - NH
603-806 DEERFIELD NH GLOBAL NAPS, INC. - NH
603-807 MONROE NH GLOBAL NAPS, INC. - NH
603-809 NASHUA NH BELL ATLANTIC NYNEX MOBILE
603-810 NHISP NH FREEDOM RING COMMUNICATIONS, LLC
603-811 NH
603-812 PORTSMOUTH NH RNK, INC.
603-814 MANCHESTER NH VERIZON NEW ENGLAND INC.
603-815 DURHAM NH TELEPORT COMMUNICATIONS OF BOSTON, INC. - NH
603-816 NASHUA NH FREEDOM RING COMMUNICATIONS, LLC
603-817 DOVER NH NEXTEL COMMUNICATIONS, INC.
603-818 DERRY NH SPRINT SPECTRUM L.P. - NH
603-819 PLAISTOW NH LEVEL 3 COMMUNICATIONS - NH
603-820 MERRIMACK NH METRO PCS, INC.
603-821 NASHUA NH CONVERSENT COMMUNICATIONS OF NEW HAMPSHIRE, LLC
603-822 ROCHESTER NH CHOICE ONE OF NEW HAMPSHIRE, INC.
603-823 FRANCONIA NH VERIZON NEW ENGLAND INC.