North American Telephone Operator
North American
Telephone Operator

Telephone Area 203. Page 4.

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: 1234678910
Company District Major City Prefix
Verizon New YorkFairfieldGreenwich, CT+1-203532-SSSS
Level 3 CommunicationsNew HavenGuilford, CT+1-203533-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203534-SSSS
Comcast Phone Of ConnecticutNew HavenNew Haven, CT+1-203535-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldStamford, CT+1-203536-SSSS
Nextel CommunicationsNew HavenMeriden, CT+1-203537-SSSS
Choice One CommunicationsFairfieldHuntington, CT+1-203538-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203539-SSSS
New Cingular Wireless PCS - DCFairfieldBridgeport, CT+1-203540-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203541-SSSS
AT&T LocalFairfieldGreenwich, CT+1-203542-SSSS
Omnipoint CommunicationsFairfieldBridgeport, CT+1-203543-SSSS
Southern New England Telephone Co.FairfieldRedding, CT+1-203544-SSSS
Sprint Spectrum L.p.FairfieldBridgeport, CT+1-203545-SSSS
Teleport Communications Group - New YorkFairfieldDanbury, CT+1-203546-SSSS
Global NapsFairfieldStamford, CT+1-203547-SSSS
Broadwing CommunicationsFairfieldStamford, CT+1-203548-SSSS
Choice One CommunicationsFairfieldBridgeport, CT+1-203549-SSSS
Omnipoint CommunicationsFairfieldStamford, CT+1-203550-SSSS
Teleport Communications Group - New YorkFairfieldBridgeport, CT+1-203551-SSSS
Verizon New YorkFairfieldGreenwich, CT+1-203552-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203553-SSSS
New Cingular Wireless PCS - DCFairfieldStamford, CT+1-203554-SSSS
New Cingular Wireless PCS - DCFairfieldBridgeport, CT+1-203556-SSSS
Cablevision LightpathFairfieldWestport, CT+1-203557-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203558-SSSS
Teleport Communications Group - New YorkFairfieldDarien, CT+1-203559-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203560-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldStamford, CT+1-203561-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203562-SSSS
Southern New England Telephone Co.FairfieldWilton, CT+1-203563-SSSS
AT&T LocalFairfieldStamford, CT+1-203564-SSSS
Sprint Spectrum L.p.New HavenWaterbury, CT+1-203565-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldStamford, CT+1-203566-SSSS
Paetec CommunicationsFairfieldHuntington, CT+1-203567-SSSS
Paetec CommunicationsNew HavenWaterbury, CT+1-203568-SSSS
Cablevision LightpathFairfieldStamford, CT+1-203569-SSSS
Omnipoint CommunicationsFairfieldStamford, CT+1-203570-SSSS
AT&T LocalFairfieldWestport, CT+1-203571-SSSS
Sprint Spectrum L.p.FairfieldBridgeport, CT+1-203572-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203573-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203574-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203575-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203576-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203577-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203578-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203579-SSSS
Usa Mobility WirelessNew HavenWaterbury, CT+1-203580-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203581-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203582-SSSS
Level 3 CommunicationsFairfieldBridgeport, CT+1-203583-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203584-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203585-SSSS
Teleport Communications Group - New YorkLitchfieldWoodbury, CT+1-203586-SSSS
Cablevision LightpathFairfieldRedding, CT+1-203587-SSSS
Cablevision LightpathFairfieldStamford, CT+1-203588-SSSS
Sprint Spectrum L.p.New HavenNew Haven, CT+1-203589-SSSS
Level 3 CommunicationsTrumbull, CT+1-203590-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203591-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203592-SSSS
Usa Mobility WirelessFairfieldNorwalk, CT+1-203593-SSSS
Cablevision LightpathFairfieldNew Canaan, CT+1-203594-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203595-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203596-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203597-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203598-SSSS
AT&T LocalNew HavenMeriden, CT+1-203599-SSSS
Metro PCSMeriden, CT+1-203600-SSSS
Teleport Communications Group - New YorkFairfieldTrumbull, CT+1-203601-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203602-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203603-SSSS
Broadwing CommunicationsFairfieldStamford, CT+1-203604-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203605-SSSS
Omnipoint CommunicationsNew HavenNew Haven, CT+1-203606-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldStamford, CT+1-203607-SSSS
Paetec CommunicationsNew HavenMeriden, CT+1-203608-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203609-SSSS
Conversent Communications Of ConnecticutFairfieldBridgeport, CT+1-203610-SSSS
Global Crossing Local Services-ctFairfieldBridgeport, CT+1-203612-SSSS
Sprint Spectrum L.p.FairfieldNorwalk, CT+1-203613-SSSS

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