North American Telephone Operator
North American
Telephone Operator

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.

In the United States, telephone numbers are divided into a country code (+1), an area code (or prefix), which is three digits long, and a subscriber number (seven digits). These are just a few examples, and there are over 300 area codes in the United States. Each code can cover both large cities and less populated areas depending on population density and telephone network distribution.

The table below shows the main major cities and telecom operators.

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

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