Area code 203 covers part of Connecticutstate, covering most of Fairfield, New Haven, Litchfield counties. It was started on Jan 01, 2000. This region follows US/Eastern + Daylight Savings timezone. Other popular area codes that belong to Connecticut state include 475, 860, 959.
Date Changed | Change Details |
Jun 01, 2014 | Area code 203-523 was introduced on Mar 31, 2014 and subscribers are operational from Jun 01, 2014. |
May 02, 2014 | Area code 203-571 was introduced on Apr 02, 2014 and subscribers are operational from May 02, 2014. |
Apr 28, 2014 | Area code 203-580 was introduced on Mar 28, 2014 and subscribers are operational from Apr 28, 2014. |
Apr 11, 2014 | Area code 203-518 was introduced on Mar 13, 2014 and subscribers are operational from Apr 11, 2014. |
Apr 11, 2014 | Area code 203-546 was introduced on Mar 13, 2014 and subscribers are operational from Apr 11, 2014. |
Feb 08, 2014 | Area code 203-590 was introduced on Jan 09, 2014 and subscribers are operational from Feb 08, 2014. |
Area Code | City | County | Population | Network Operator |
203-500 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-501-1 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-501-9 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-501-0 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-501-6 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-502-9 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-502-1 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-502-7 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-502-0 | Stratford | Fairfield | 916,829 | Southern New England Telephone Company |
203-502-8 | Willimantic | Fairfield | 916,829 | Charter FIberlink CT-CCO LLC - CT |
203-503-8 | Bloomfield | New Haven | 862,477 | Omnipoint Communications Inc - CT |
203-503-0 | New Haven | New Haven | 862,477 | Southern New England Telephone Company |
203-504-9 | Hartford | Fairfield | 916,829 | Broadwing Communications LLC - CT |
203-504-6 | New Haven | Fairfield | 916,829 | Conversent Communications of Connecticut LLC - CT |
203-504-8 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-504-0 | Stamford | Fairfield | 916,829 | CTC Communications Corporation - CT |
203-504-4 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-505-6 | New Haven | Fairfield | 916,829 | SBC Internet Services Inc |
203-505-0 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-506 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-507-1 | Bloomfield | New Haven | 862,477 | Omnipoint Communications Inc - CT |
203-507-2 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-507-0 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-508-5 | Bloomfield | New Haven | 862,477 | Omnipoint Communications Inc - CT |
203-508-0 | New Haven | New Haven | 862,477 | CTC Communications Corporation - CT |
203-508-9 | Stamford | New Haven | 862,477 | Paetec Communications Inc - CT |
203-509 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-510 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-511 | 412,513 | Travel Information Services | ||
203-512 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-513-0 | Cheshire | Fairfield | 916,829 | AT&T Local |
203-513-9 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-513-5 | Hartford | Fairfield | 916,829 | Broadwing Communications LLC - CT |
203-513-8 | Hartford | Fairfield | 916,829 | Comcast Phone of Connecticut Inc - CT |
203-513-1 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-513-7 | New Haven | Fairfield | 916,829 | SBC Internet Services Inc |
203-514-7 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-514-0 | Hartford | New Haven | 862,477 | Teleport Communications America LLC - CT |
203-514-9 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-515 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-516-7 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-516-5 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-516-1 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-516-6 | New Haven | New Haven | 862,477 | CTC Communications Corporation - CT |
203-516-0 | Stamford | New Haven | 862,477 | Global Crossing Local Services Inc - CT |
203-516-4 | Stamford | New Haven | 862,477 | Level 3 Communications LLC - CT |
203-516-8 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-517-8 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-517-9 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-517-3 | Stamford | Fairfield | 916,829 | CTC Communications Corporation - CT |
203-517-0 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-517-2 | Stamford | Fairfield | 916,829 | Paetec Communications Inc - CT |
203-518-9 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-518-0 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-518-7 | New London | New Haven | 862,477 | Qwest Communications Company LLC |
203-519-8 | Hartford | New Haven | 862,477 | YMax Communications Corporation - CT |
203-519-0 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-520 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-521 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-522-0 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-522-5 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-523-0 | Hartford | Fairfield | 916,829 | Teleport Communications America LLC - CT |
203-523-5 | New Haven | Fairfield | 916,829 | Conversent Communications of Connecticut LLC - CT |
203-523-9 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-524-0 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-525 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-526 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-527-0 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-527-7 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-527-8 | New Haven | New Haven | 862,477 | SBC Internet Services Inc |
203-527-0 | Prospect | New Haven | 862,477 | Southern New England Telephone Company |
203-527-2 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-527-1 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-528-9 | Hartford | New Haven | 862,477 | Broadwing Communications LLC - CT |
203-528-4 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-528-8 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-528-0 | Stamford | New Haven | 862,477 | Level 3 Communications LLC - CT |
203-528-2 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-529-0 | Cheshire | Fairfield | 916,829 | AT&T Local |
203-529-7 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-529-8 | Hartford | Fairfield | 916,829 | Peerless Network of Connecticut LLC - CT |
203-529-3 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-529-0 | Stamford | Fairfield | 916,829 | Global Crossing Local Services Inc - CT |
203-529-6 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-530 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-531 | Port Chester | Fairfield | 916,829 | Verizon New York Inc |
203-532-5 | Hicksville | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-532-8 | Melville | Fairfield | 916,829 | Conversent Communications of Connecticut LLC - CT |
203-532-0 | Port Chester | Fairfield | 916,829 | Verizon New York Inc |
203-533-9 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-533-7 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-533-3 | Hartford | New Haven | 862,477 | MCImetro Access Transmission Services LLC |
203-533-8 | Hartford | New Haven | 862,477 | Peerless Network of Connecticut LLC - CT |
203-533-0 | Stamford | New Haven | 862,477 | Level 3 Communications LLC - CT |
203-533-6 | Stamford | New Haven | 862,477 | Paetec Communications Inc - CT |
203-534-0 | Bridgeport | Fairfield | 916,829 | Southern New England Telephone Company |
203-534-9 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-535-0 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-535-8 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-535-9 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-536 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-537 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-538-9 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-538-8 | New Haven | Fairfield | 916,829 | CTC Communications Corporation - CT |
203-539-1 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-539-0 | Stamford | Fairfield | 916,829 | Southern New England Telephone Company |
203-540-0 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-540-6 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-541-0 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-541-0 | Stamford | Fairfield | 916,829 | Southern New England Telephone Company |
203-542-8 | Brooklyn | Fairfield | 916,829 | Broadwing Communications LLC - CT |
203-542-9 | White Plains | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-543 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-544-0 | Georgetown | Fairfield | 916,829 | Southern New England Telephone Company |
203-544-5 | New Haven | Fairfield | 916,829 | SBC Internet Services Inc |
203-545 | Wallingford | Fairfield | 916,829 | Sprint Spectrum LP |
203-546-0 | Hartford | Fairfield | 916,829 | Teleport Communications America LLC - CT |
203-546-8 | Willimantic | Fairfield | 916,829 | Charter FIberlink CT-CCO LLC - CT |
203-547 | New Haven | Fairfield | 916,829 | Global Naps Inc - CT |
203-548-1 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-548-8 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-549-0 | Hartford | Fairfield | 916,829 | Choice One Communications Inc - CT |
203-550 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-551-4 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-551-1 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-552-0 | Greenwich | Fairfield | 916,829 | Verizon New York Inc |
203-553-7 | Hartford | New Haven | 862,477 | Comcast Phone of Connecticut Inc - CT |
203-553-9 | Norwalk | New Haven | 862,477 | Cablevision Lightpath Inc - CT |
203-554 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-555 | 482,557 | DIRECTORY ASSISTANCE | ||
203-556 | Middletown | Fairfield | 916,829 | New Cingular Wireless PCS LLC - DC |
203-557-0 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-558 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-559-0 | Hartford | Fairfield | 916,829 | Teleport Communications America LLC - CT |
203-560 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-561 | Wallingford | Fairfield | 916,829 | Cellco Partnership dba Verizon Wireless - CT |
203-562 | New Haven | New Haven | 862,477 | Southern New England Telephone Company |
203-563-8 | Hartford | Fairfield | 916,829 | Peerless Network of Connecticut LLC - CT |
203-563-0 | Wilton | Fairfield | 916,829 | Southern New England Telephone Company |
203-564-0 | Cheshire | Fairfield | 916,829 | AT&T Local |
203-565-0 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-566-0 | Stamford | Fairfield | 916,829 | Brooks Fiber Communications of Connecticut Inc - CT |
203-567-4 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-568-5 | Bloomfield | New Haven | 862,477 | Omnipoint Communications Inc - CT |
203-568-3 | Wallingford | New Haven | 862,477 | Sprint Spectrum LP |
203-569 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-570 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-571-0 | Cheshire | Fairfield | 916,829 | AT&T Local |
203-571-0 | Stamford | Fairfield | 916,829 | Global Crossing Local Services Inc - CT |
203-572-5 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-572-0 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-573 | Waterbury | New Haven | 862,477 | Southern New England Telephone Company |
203-574 | Waterbury | New Haven | 862,477 | Southern New England Telephone Company |
203-575 | Waterbury | New Haven | 862,477 | Southern New England Telephone Company |
203-576 | Bridgeport | Fairfield | 916,829 | Southern New England Telephone Company |
203-577-0 | Middlebury | New Haven | 862,477 | Southern New England Telephone Company |
203-577-9 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-578-7 | Bloomfield | New Haven | 862,477 | Omnipoint Communications Inc - CT |
203-579 | Bridgeport | Fairfield | 916,829 | Southern New England Telephone Company |
203-580-9 | Hartford | Fairfield | 916,829 | Peerless Network of Connecticut LLC - CT |
203-580-0 | New York | Fairfield | 916,829 | Voxbeam Telecommunications Inc - CT |
203-581 | Bridgeport | Fairfield | 916,829 | Southern New England Telephone Company |
203-582 | Hamden | New Haven | 862,477 | Southern New England Telephone Company |
203-583-5 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-584-7 | Hartford | New Haven | 862,477 | Bandwidth.com CLEC LLC - CT |
203-584-0 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-585-0 | Stamford | Fairfield | 916,829 | Southern New England Telephone Company |
203-586-0 | Hartford | Litchfield | 189,927 | Teleport Communications America LLC - CT |
203-586-3 | Norwalk | Litchfield | 189,927 | Cablevision Lightpath Inc - CT |
203-587-0 | Bloomfield | Fairfield | 916,829 | Omnipoint Communications Inc - CT |
203-587-3 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-588 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-589-0 | Wallingford | New Haven | 862,477 | Cellco Partnership dba Verizon Wireless - CT |
203-590-7 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-590-0 | Stamford | Fairfield | 916,829 | Level 3 Communications LLC - CT |
203-591 | Waterbury | New Haven | 862,477 | Southern New England Telephone Company |
203-592 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-593 | Norwalk | Fairfield | 916,829 | USA Mobility Wireless Inc |
203-594-6 | Hartford | Fairfield | 916,829 | Bandwidth.com CLEC LLC - CT |
203-594-0 | Norwalk | Fairfield | 916,829 | Cablevision Lightpath Inc - CT |
203-595-3 | New Haven | Fairfield | 916,829 | Conversent Communications of Connecticut LLC - CT |
203-595-0 | Stamford | Fairfield | 916,829 | Southern New England Telephone Company |
203-596 | Waterbury | New Haven | 862,477 | Southern New England Telephone Company |
203-597 | Middletown | New Haven | 862,477 | New Cingular Wireless PCS LLC - DC |
203-598-0 | Middlebury | New Haven | 862,477 | Southern New England Telephone Company |
203-599-0 | Cheshire | New Haven | 862,477 | AT&T Local |
203-599-7 | Hartford | New Haven | 862,477 | Peerless Network of Connecticut LLC - CT |
203-599-8 | New Haven | New Haven | 862,477 | SBC Internet Services Inc |
Naama Kates (naama.kates@gmail.com) commented on
203-583-4893
This review was created at 2011-05-06T14:16
FDA spam.
Recent reviews for Area Code 203-583-4
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