North American Telephone Operator
North American
Telephone Operator

Telephone Area 203. .

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: 2345678910
Company District Major City Prefix
Bandwidth.com ClecNew Haven, CT+1-203200-SSSS
Usa Mobility WirelessNew HavenNew Haven, CT+1-203201-SSSS
Cablevision LightpathFairfieldDarien, CT+1-203202-SSSS
Teleport Communications Group - New YorkNew HavenGuilford, CT+1-203204-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203205-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203206-SSSS
Southern New England Telephone Co.FairfieldDanbury, CT+1-203207-SSSS
Comcast Phone Of ConnecticutNew HavenBranford, CT+1-203208-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203209-SSSS
Cablevision LightpathFairfieldWilton, CT+1-203210-SSSS
New Cingular Wireless PCS - DCBridgeport, CT+1-203212-SSSS
New Cingular Wireless PCS - DCNew HavenMeriden, CT+1-203213-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203214-SSSS
New Cingular Wireless PCS - DCNew HavenNew Haven, CT+1-203215-SSSS
New Cingular Wireless PCS - DCFairfieldWestport, CT+1-203216-SSSS
New Cingular Wireless PCS - DCNew HavenWaterbury, CT+1-203217-SSSS
New Cingular Wireless PCS - DCFairfieldBridgeport, CT+1-203218-SSSS
New Cingular Wireless PCS - DCFairfieldStamford, CT+1-203219-SSSS
Cablevision LightpathFairfieldTrumbull, CT+1-203220-SSSS
Southern New England Telephone Co.FairfieldWestport, CT+1-203221-SSSS
Southern New England Telephone Co.FairfieldWestport, CT+1-203222-SSSS
Nextel CommunicationsFairfieldStamford, CT+1-203223-SSSS
Southern New England Telephone Co.FairfieldBridgeport, CT+1-203224-SSSS
Southern New England Telephone Co.FairfieldHuntington, CT+1-203225-SSSS
Southern New England Telephone Co.FairfieldWestport, CT+1-203226-SSSS
Southern New England Telephone Co.FairfieldWestport, CT+1-203227-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenWaterbury, CT+1-203228-SSSS
Southern New England Telephone Co.FairfieldNorwalk, CT+1-203229-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203230-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenDerby, CT+1-203231-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenWaterbury, CT+1-203232-SSSS
Cellco Partnership DBA Verizon WirelessNew HavenWaterbury, CT+1-203233-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203234-SSSS
Southern New England Telephone Co.New HavenMeriden, CT+1-203235-SSSS
Southern New England Telephone Co.New HavenWaterbury, CT+1-203236-SSSS
Southern New England Telephone Co.New HavenMeriden, CT+1-203237-SSSS
Southern New England Telephone Co.New HavenMeriden, CT+1-203238-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203239-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldDanbury, CT+1-203240-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldDanbury, CT+1-203241-SSSS
Cablevision LightpathFairfieldHuntington, CT+1-203242-SSSS
Omnipoint CommunicationsFairfieldBridgeport, CT+1-203243-SSSS
Cablevision LightpathFairfieldRidgefield, CT+1-203244-SSSS
Southern New England Telephone Co.New HavenMadison, CT+1-203245-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldNorwalk, CT+1-203246-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldNorwalk, CT+1-203247-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203248-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldStamford, CT+1-203249-SSSS
Southern New England Telephone Co.New HavenCheshire, CT+1-203250-SSSS
Southern New England Telephone Co.FairfieldStamford, CT+1-203251-SSSS
Cablevision LightpathFairfieldStamford, CT+1-203252-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldStamford, CT+1-203253-SSSS
Southern New England Telephone Co.FairfieldFairfield, CT+1-203254-SSSS
Southern New England Telephone Co.FairfieldFairfield, CT+1-203255-SSSS
Southern New England Telephone Co.FairfieldFairfield, CT+1-203256-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203257-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldBridgeport, CT+1-203258-SSSS
Southern New England Telephone Co.FairfieldFairfield, CT+1-203259-SSSS
New Cingular Wireless PCS - DCFairfieldBridgeport, CT+1-203260-SSSS
Southern New England Telephone Co.FairfieldTrumbull, CT+1-203261-SSSS
Southern New England Telephone Co.New HavenSouthbury, CT+1-203262-SSSS
Southern New England Telephone Co.LitchfieldWoodbury, CT+1-203263-SSSS
Southern New England Telephone Co.New HavenSouthbury, CT+1-203264-SSSS
Southern New England Telephone Co.New HavenWallingford, CT+1-203265-SSSS
Southern New England Telephone Co.LitchfieldWoodbury, CT+1-203266-SSSS
Southern New England Telephone Co.New HavenSouthbury, CT+1-203267-SSSS
Southern New England Telephone Co.FairfieldTrumbull, CT+1-203268-SSSS
Southern New England Telephone Co.New HavenWallingford, CT+1-203269-SSSS
Southern New England Telephone Co.FairfieldNewtown, CT+1-203270-SSSS
Southern New England Telephone Co.New HavenCheshire, CT+1-203271-SSSS
Southern New England Telephone Co.New HavenCheshire, CT+1-203272-SSSS
Cellco Partnership DBA Verizon WirelessFairfieldStamford, CT+1-203273-SSSS
New Cingular Wireless PCS - DCFairfieldStamford, CT+1-203274-SSSS
Southern New England Telephone Co.Bridgeport, CT+1-203275-SSSS
Cablevision LightpathFairfieldStamford, CT+1-203276-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldOld Greenwich, CT+1-203277-SSSS
Omnipoint CommunicationsNew HavenDerby, CT+1-203278-SSSS
Usa Mobility WirelessFairfieldBridgeport, CT+1-203279-SSSS
Brooks Fiber Communications Of Connecticut Inc-ctFairfieldDarien, CT+1-203280-SSSS
Southern New England Telephone Co.New HavenNew Haven, CT+1-203281-SSSS

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