Area code 203 was first put in service January 01, 1947. Area code 203 is in USA (Connecticut). 1-800-database has 1571 records on file with a phone number in the area code of (203) and 194 comments.
The carriers providing phone numbers in 203 area code are: American Messaging (am), AT&T Local, Bandwidth.com Clec, Broadwing Communications, Brooks Fiber Communications Of Connecticut Inc-ct, Cablevision Lightpath, Cellco Partnership DBA Verizon Wireless, Choice One Communications, Comcast Phone Of Connecticut, Conversent Communications Of Connecticut, Cox Connecticut Telecom, Ctc Communications Corp., Global Crossing Local Services-ct, Global Naps, Level 3 Communications, Mcimetro Access Transmission Services LLC, Metro PCS, New Cingular Wireless PCS - DC, Omnipoint Communications, Paetec Communications, Paetec Communications - NY, Peerless Network Of Connecticut, Sbc Internet Services, Southern New England Telephone Co., Sprint Spectrum L.p., Teleport Communications America, Teleport Communications Group - NY, Usa Mobility Wireless, Verizon New York.
Counties located in area code 203 are: FAIRFIELD, NEW HAVEN, NEW LONDON, WESTCHESTER.
Largest city: Bridgeport
In service since: 01/01/1947
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