Database of North America’s phone numbers
Database of North America’s
phone numbers

Telephone Area 203. Page 7.

Phone numbers of the state Connecticut
Prefix: +1203
This prefix is distributed within the state Connecticut
The largest city in the region is New Haven
Time Zone: Eastern
Winter time: UTC-5
Summer time: UTC-4
Below on the map, there is indicated the largest city in the telephone area +1-203-...-.... Connecticut New Haven.

If you notice any errors of any community’s location on the map, please report it via the feedback form.

Phone numbers +1-203-YYY-YYYY

Other pages: 1234567910
Company District Major City Prefix
Southern New England Telephone Co.New HavenNew Haven, CT+1-203777-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203778-SSSS
Choice One CommunicationsNew HavenMadison, CT+1-203779-SSSS
Usa Mobility WirelessNew HavenWaterbury, CT+1-203780-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203781-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203782-SSSS
Southern New England Telephone Co.New HavenMilford, CT+1-203783-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203784-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203785-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203786-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203787-SSSS
New Cingular Wireless PCS - DCFairfieldDanbury, CT+1-203788-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203789-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203790-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203791-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203792-SSSS
Global Crossing Local Services-ctNew HavenWallingford, CT+1-203793-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203794-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203795-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203796-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203797-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203798-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203799-SSSS
Sprint Spectrum L.p.New Haven, CT+1-203800-SSSS
Southern New England Telephone Co.FairfieldNew Canaan, CT+1-203801-SSSS
Metro PCSWaterbury, CT+1-203802-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldNorwalk, CT+1-203803-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203804-SSSS
Teleport Communications Group - New YorkNew HavenWaterbury, CT+1-203805-SSSS
Teleport Communications Group - New YorkNew HavenCheshire, CT+1-203806-SSSS
New Cingular Wireless PCS - DCFairfieldNorwalk, CT+1-203807-SSSS
Omnipoint CommunicationsNew HavenWaterbury, CT+1-203808-SSSS
Omnipoint CommunicationsNew HavenNew Haven, CT+1-203809-SSSS
Cablevision LightpathFairfieldNorwalk, CT+1-203810-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203812-SSSS
Teleport Communications Group - NYFairfieldGreenwich, CT+1-203813-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203814-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203815-SSSS
Global Crossing Local Services-ctFairfieldTrumbull, CT+1-203816-SSSS
Cablevision LightpathFairfieldStamford, CT+1-203817-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldNorwalk, CT+1-203818-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203819-SSSS
Sprint Spectrum L.p.FairfieldNorwalk, CT+1-203820-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203821-SSSS
AT&T LocalFairfieldNorwalk, CT+1-203822-SSSS
Comcast Phone Of ConnecticutNew HavenNew Haven, CT+1-203823-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203824-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203825-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203826-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldOld Greenwich, CT+1-203827-SSSS
Global Crossing Local Services-ctNew HavenSeymour, CT+1-203828-SSSS
Sprint Spectrum L.p.FairfieldNorwalk, CT+1-203829-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203830-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203831-SSSS
New Cingular Wireless PCS - DCStamford, CT+1-203832-SSSS
Usa Mobility WirelessFairfieldNorwalk, CT+1-203833-SSSS
Southern New England Telephone Co.FairfieldWilton, CT+1-203834-SSSS
Usa Mobility WirelessFairfieldNorwalk, CT+1-203835-SSSS
Usa Mobility WirelessFairfieldNorwalk, CT+1-203836-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203837-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203838-SSSS
Usa Mobility WirelessFairfieldNorwalk, CT+1-203839-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203840-SSSS
Choice One CommunicationsNew HavenWaterbury, CT+1-203841-SSSS
Global Crossing Local Services-ctFairfieldStamford, CT+1-203842-SSSS
AT&T LocalNew HavenNew Haven, CT+1-203843-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldFairfield, CT+1-203844-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203845-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203846-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203847-SSSS
Conversent Communications Of ConnecticutNew HavenNew Haven, CT+1-203848-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203849-SSSS
Metro PCSNew Haven, CT+1-203850-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203851-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203852-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203853-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203854-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203855-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldNorwalk, CT+1-203856-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203857-SSSS

If you have not found the required prefix in the table, you can use the search of a full telephone number at the top of the site or the advanced search.

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