North American Telephone Operator
North American
Telephone Operator

Telephone Area 203. Page 3.

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: 1235678910
Company District Major City Prefix
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203444-SSSS
Southern New England Telephone Co.FairfieldTrumbull, CT+1-203445-SSSS
Teleport Communications Group - New YorkNew HavenDerby, CT+1-203446-SSSS
Teleport Communications Group - New YorkFairfieldHuntington, CT+1-203447-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldDanbury, CT+1-203448-SSSS
Sprint Spectrum L.p.FairfieldBridgeport, CT+1-203449-SSSS
Cellco Partnership DBA Verizon WirelessBridgeport, CT+1-203450-SSSS
New Cingular Wireless PCS - DCFairfieldWestport, CT+1-203451-SSSS
Southern New England Telephone Co.FairfieldTrumbull, CT+1-203452-SSSS
Southern New England Telephone Co.New HavenGuilford, CT+1-203453-SSSS
Southern New England Telephone Co.FairfieldWestport, CT+1-203454-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldBridgeport, CT+1-203455-SSSS
Usa Mobility WirelessNew HavenMeriden, CT+1-203456-SSSS
Southern New England Telephone Co.New HavenGuilford, CT+1-203457-SSSS
Southern New England Telephone Co.New HavenGuilford, CT+1-203458-SSSS
Southern New England Telephone Co.FairfieldTrumbull, CT+1-203459-SSSS
AT&T LocalFairfieldDanbury, CT+1-203460-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203461-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203462-SSSS
Teleport Communications Group - New YorkNew HavenSeymour, CT+1-203463-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203464-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203465-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203466-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203467-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203468-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203469-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldDanbury, CT+1-203470-SSSS
Usa Mobility WirelessNew HavenNew Haven, CT+1-203477-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203479-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldFairfield, CT+1-203480-SSSS
Southern New England Telephone Co.New HavenBranford, CT+1-203481-SSSS
New Cingular Wireless PCS - DCFairfieldDanbury, CT+1-203482-SSSS
Southern New England Telephone Co.New HavenBranford, CT+1-203483-SSSS
Southern New England Telephone Co.New HavenNorthford, CT+1-203484-SSSS
Cablevision LightpathFairfieldGreenwich, CT+1-203485-SSSS
Southern New England Telephone Co.New HavenSouthbury, CT+1-203486-SSSS
Global Crossing Local Services-ctFairfieldStamford, CT+1-203487-SSSS
Southern New England Telephone Co.New HavenBranford, CT+1-203488-SSSS
Cablevision LightpathFairfieldNorwalk, CT+1-203489-SSSS
Teleport Communications Group - New YorkNew HavenNaugatuck, CT+1-203490-SSSS
Bandwidth.com ClecNew HavenNewtown, CT+1-203491-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203492-SSSS
Level 3 CommunicationsFairfieldRedding, CT+1-203493-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203494-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203495-SSSS
Nextel CommunicationsFairfieldGreenwich, CT+1-203496-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203497-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203498-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203499-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203500-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenDanbury, CT+1-203501-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203502-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203503-SSSS
Ctc Communications Corp.FairfieldStamford, CT+1-203504-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldNorwalk, CT+1-203505-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203506-SSSS
Sprint Spectrum L.p.New HavenNew Haven, CT+1-203507-SSSS
Ctc Communications Corp.New HavenNew Haven, CT+1-203508-SSSS
Nextel CommunicationsNew HavenWaterbury, CT+1-203509-SSSS
Sprint Spectrum L.p.New HavenWaterbury, CT+1-203510-SSSS
Omnipoint CommunicationsFairfieldDanbury, CT+1-203512-SSSS
AT&T LocalNew HavenNew Haven, CT+1-203513-SSSS
Teleport Communications Group - New YorkNew HavenMeriden, CT+1-203514-SSSS
Nextel CommunicationsFairfieldNorwalk, CT+1-203515-SSSS
Global Crossing Local Services-ctNew HavenDerby, CT+1-203516-SSSS
Level 3 CommunicationsFairfieldStamford, CT+1-203517-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203518-SSSS
Sprint Spectrum L.p.New HavenWaterbury, CT+1-203519-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203520-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203521-SSSS
New Cingular Wireless PCS - DCFairfieldBridgeport, CT+1-203522-SSSS
Teleport Communications Group - New YorkFairfieldNorwalk, CT+1-203523-SSSS
New Cingular Wireless PCS - DCFairfieldStamford, CT+1-203524-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203525-SSSS
Sprint Spectrum L.p.FairfieldBridgeport, CT+1-203526-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203527-SSSS
Level 3 CommunicationsNew HavenWaterbury, CT+1-203528-SSSS
AT&T LocalFairfieldWilton, CT+1-203529-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenNew Haven, CT+1-203530-SSSS
Verizon New YorkFairfieldGreenwich, CT+1-203531-SSSS

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