Connecticut Area Code 203

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Area Code 203 Information:

Area Code: 203
State: Connecticut
Cities: Danbury, Westport, Stamford, Waterbury, Norwalk, Fairfield, Bridgeport, Milford, New Haven, Wallingford, Derby, Ridgefield, Branford, Meriden, Darien, Cheshire, Naugatuck, Wilton, Greenwich, Stratford, Huntington, New Canaan

Exchanges in Area Code 203:

Exchange County City Carrier Line Type
203-205 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-216 FAIRFIELD Westport SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-219 FAIRFIELD Stamford SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-233 NEW HAVEN Waterbury CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-240 FAIRFIELD Danbury CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-246 FAIRFIELD Norwalk CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-249 FAIRFIELD Stamford CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-253 FAIRFIELD Stamford CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-255 FAIRFIELD Fairfield SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-257 FAIRFIELD Bridgeport CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-273 FAIRFIELD Stamford CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-276 FAIRFIELD Stamford CABLEVISION LIGHTPATH, INC. - CT Landline
203-283 NEW HAVEN Milford MCI METRO ATS, INC. - CT Landline
203-285 NEW HAVEN New Haven LEVEL 3 COMMUNICATIONS, LLC - CT Landline
203-294 NEW HAVEN Wallingford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-298 NEW HAVEN New Haven CABLEVISION LIGHTPATH, INC. - CT Landline
203-300 FAIRFIELD Danbury OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-305 NEW HAVEN Derby SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-314 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-316 FAIRFIELD Stamford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-330 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-345 FAIRFIELD Bridgeport CABLEVISION LIGHTPATH, INC. - CT Landline
203-348 FAIRFIELD Stamford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-353 FAIRFIELD Stamford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-354 FAIRFIELD Norwalk CABLEVISION LIGHTPATH, INC. - CT Landline
203-362 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-366 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-374 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-376 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-387 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-388 FAIRFIELD Stamford BROOKS FIBER COMMUNICATIONS OF CONN Landline
203-389 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-401 NEW HAVEN New Haven BROADWING COMMUNICATIONS, LLC - NY Landline
203-410 NEW HAVEN New Haven NEXTEL COMMUNICATIONS, INC. Cell Phone
203-414 FAIRFIELD Bridgeport SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-415 NEW HAVEN New Haven SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-417 FAIRFIELD Danbury SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-430 NEW HAVEN New Haven SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-431 FAIRFIELD Ridgefield SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-432 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-434 FAIRFIELD Norwalk OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-449 FAIRFIELD Bridgeport SPRINT SPECTRUM L.P. Cell Phone
203-451 FAIRFIELD Westport SOUTHWESTERN BELL MOBILE SYSTEMS, L Landline
203-464 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-470 FAIRFIELD Danbury CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-488 NEW HAVEN Branford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-492 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-494 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-500 NEW HAVEN New Haven BLUE LICENSES HOLDING, LLC Cell Phone
203-508 NEW HAVEN New Haven PAETEC COMMUNICATIONS, INC. - CT Landline
203-509 NEW HAVEN Waterbury NEXTEL COMMUNICATIONS, INC. Cell Phone
203-512 FAIRFIELD Danbury OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-515 FAIRFIELD Norwalk NEXTEL COMMUNICATIONS, INC. Cell Phone
203-520 FAIRFIELD Bridgeport CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-521 FAIRFIELD Bridgeport CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-525 NEW HAVEN Waterbury SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-530 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-535 NEW HAVEN New Haven TELEPORT COMMUNICATIONS NEW YORK OP Landline
203-536 FAIRFIELD Stamford CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-537 NEW HAVEN Meriden NEXTEL COMMUNICATIONS, INC. Cell Phone
203-540 FAIRFIELD Bridgeport SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-543 FAIRFIELD Bridgeport OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-545 FAIRFIELD Bridgeport SPRINT SPECTRUM L.P. Cell Phone
203-549 FAIRFIELD Bridgeport CHOICE ONE COMMUNICATIONS, INC. - C Landline
203-550 FAIRFIELD Stamford OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-551 FAIRFIELD Bridgeport BROADWING COMMUNICATIONS, LLC - NY Landline
203-559 FAIRFIELD Darien TELEPORT COMMUNICATIONS NEW YORK OP Landline
203-560 NEW HAVEN Waterbury SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-570 FAIRFIELD Stamford OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-574 NEW HAVEN Waterbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-575 NEW HAVEN Waterbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-578 NEW HAVEN Waterbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-597 NEW HAVEN Waterbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-605 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-615 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-617 NEW HAVEN Wallingford SPRINT SPECTRUM L.P. Landline
203-619 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-623 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-627 NEW HAVEN New Haven NEXTEL COMMUNICATIONS, INC. Cell Phone
203-631 NEW HAVEN Meriden SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-642 FAIRFIELD Stamford BROOKS FIBER COMMUNICATIONS OF CONN Landline
203-648 FAIRFIELD Danbury LEVEL 3 COMMUNICATIONS, LLC - CT Landline
203-651 NEW HAVEN Cheshire LEVEL 3 COMMUNICATIONS, LLC - CT Landline
203-654 NEW HAVEN New Haven LEVEL 3 COMMUNICATIONS, LLC - CT Landline
203-655 FAIRFIELD Darien SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-667 FAIRFIELD Stamford NEXTEL COMMUNICATIONS, INC. Cell Phone
203-671 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-672 NEW HAVEN New Haven PAETEC COMMUNICATIONS, INC. - CT Landline
203-675 NEW HAVEN New Haven SPRINT SPECTRUM L.P. Cell Phone
203-685 FAIRFIELD Bridgeport OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-691 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-719 FAIRFIELD Stamford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-723 NEW HAVEN Naugatuck SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-733 FAIRFIELD Danbury CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-739 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-743 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-744 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-748 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-752 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-762 FAIRFIELD Wilton SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-767 FAIRFIELD Bridgeport CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-770 FAIRFIELD Danbury SOUTHWESTERN BELL MOBILE SYSTEMS, L Landline
203-775 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-783 NEW HAVEN Milford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-785 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-788 FAIRFIELD Danbury SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-791 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-798 FAIRFIELD Danbury SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-808 NEW HAVEN Waterbury OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-809 NEW HAVEN New Haven OMNIPOINT COMMUNICATIONS, INC. - CT Cell Phone
203-814 FAIRFIELD Bridgeport SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-815 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-823 NEW HAVEN New Haven TELEPORT COMMUNICATIONS NEW YORK OP Landline
203-824 NEW HAVEN New Haven SOUTHWESTERN BELL MOBILE SYSTEMS, L Cell Phone
203-831 FAIRFIELD Norwalk SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-834 FAIRFIELD Wilton SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-841 NEW HAVEN Waterbury CHOICE ONE COMMUNICATIONS, INC. - C Landline
203-843 NEW HAVEN New Haven AT&T - LOCAL - CT Landline
203-846 FAIRFIELD Norwalk SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-848 NEW HAVEN New Haven CONVERSENT COMMUNICATIONS OF CONNEC Landline
203-856 FAIRFIELD Norwalk CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-859 NEW HAVEN New Haven BROOKS FIBER COMMUNICATIONS OF CONN Landline
203-868 NEW HAVEN New Haven AT&T - LOCAL - CT Landline
203-869 FAIRFIELD Greenwich VERIZON NEW YORK, INC. - CT Landline
203-870 FAIRFIELD Stratford CABLEVISION LIGHTPATH, INC. - CT Landline
203-877 NEW HAVEN Milford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-878 NEW HAVEN Milford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-887 NEW HAVEN New Haven SPRINT SPECTRUM L.P. Cell Phone
203-906 NEW HAVEN Derby CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-910 NEW HAVEN Waterbury CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-913 FAIRFIELD Bridgeport CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-915 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-918 FAIRFIELD Stamford BLUE LICENSES HOLDING, LLC Cell Phone
203-921 FAIRFIELD Stamford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-926 FAIRFIELD Huntington SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-927 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Landline
203-932 NEW HAVEN New Haven SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-948 FAIRFIELD Danbury NEXTEL COMMUNICATIONS, INC. Cell Phone
203-949 NEW HAVEN Wallingford SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-966 FAIRFIELD New Canaan SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-971 FAIRFIELD Greenwich CABLEVISION LIGHTPATH, INC. - CT Landline
203-972 FAIRFIELD New Canaan SOUTHERN NEW ENGLAND TEL CO - CT Landline
203-980 NEW HAVEN New Haven CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-981 FAIRFIELD Norwalk SPRINT SPECTRUM L.P. Cell Phone
203-984 FAIRFIELD Norwalk CELLCO PARTNERSHIP DBA VERIZON WIRE Cell Phone
203-993 FAIRFIELD Norwalk CELLCO PARTNERSHIP DBA VERIZON WIRE Landline
203-996 NEW HAVEN New Haven NEXTEL COMMUNICATIONS, INC. Cell Phone