203 Area Code has 777 prefixes

PrefixPrimary CityCarrier
203-814WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-815WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-816StamfordGlobal Crossing Local Services, Inc.-ct
203-817WallingfordCablevision Lightpath, Inc. - Ct
203-818BloomfieldBrooks Fiber Communications Of Connecticut Inc-ct
203-819MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-820WallingfordSprint Spectrum L.p.
203-821New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-822MiddletownAt&t Local
203-823MiddletownComcast Phone Of Connecticut, Inc. - Ct
203-824MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-825DanburySouthern New England Telco Dba Frontier Comm Of Ct
203-826HartfordSouthern New England Telco Dba Frontier Comm Of Ct
203-827StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-828StamfordGlobal Crossing Local Services, Inc.-ct
203-829WallingfordSprint Spectrum L.p.
203-830DanburySouthern New England Telco Dba Frontier Comm Of Ct
203-831NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-832MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-833WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-834WiltonSouthern New England Telco Dba Frontier Comm Of Ct
203-835WaterburyUsa Mobility Wireless, Inc.
203-836WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-837DanburySouthern New England Telco Dba Frontier Comm Of Ct
203-838NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-839WaterburyUsa Mobility Wireless, Inc.
203-840NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-841HartfordChoice One Communications, Inc. - Ct
203-842StamfordGlobal Crossing Local Services, Inc.-ct
203-843MiddletownAt&t Local
203-844StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-845NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-846NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-847NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-848New HavenConversent Communications Of Connecticut, Llc
203-849NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-850BloomfieldMetro Pcs, Inc.
203-851NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-852NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-853NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-854NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-855NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-856WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-857NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-858WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-859WallingfordMcimetro Access Transmission Services Llc
203-861GreenwichVerizon New York Inc.
203-862GreenwichVerizon New York Inc.
203-863GreenwichVerizon New York Inc.
203-864WallingfordSprint Spectrum L.p.
203-865New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-866NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-867New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-868HartfordAt&t Local
203-869GreenwichVerizon New York Inc.
203-870NorwalkCablevision Lightpath, Inc. - Ct
203-871HartfordTeleport Communications America, Llc - Ct
203-872HartfordAt&t Local
203-873MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-874MilfordSouthern New England Telco Dba Frontier Comm Of Ct
203-875StamfordAt&t Local
203-876MilfordSouthern New England Telco Dba Frontier Comm Of Ct
203-877MilfordSouthern New England Telco Dba Frontier Comm Of Ct
203-878MilfordSouthern New England Telco Dba Frontier Comm Of Ct
203-879WolcottSouthern New England Telco Dba Frontier Comm Of Ct
203-880HartfordTeleport Communications America, Llc - Ct
203-881SeymourSouthern New England Telco Dba Frontier Comm Of Ct
203-882MilfordSouthern New England Telco Dba Frontier Comm Of Ct
203-883StamfordLevel 3 Communications, Llc - Ct
203-884StamfordGlobal Crossing Local Services, Inc.-ct
203-885WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-886HartfordChoice One Communications, Inc. - Ct
203-887HartfordSprint Spectrum L.p.
203-888SeymourSouthern New England Telco Dba Frontier Comm Of Ct
203-889StamfordGlobal Crossing Local Services, Inc.-ct
203-890StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-891OrangeSouthern New England Telco Dba Frontier Comm Of Ct
203-892BloomfieldOmnipoint Communications, Inc. - Ct
203-893MiddletownCellco Partnership Dba Verizon Wireless - Ct
203-894RidgefieldSouthern New England Telco Dba Frontier Comm Of Ct
203-895MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-896StamfordGlobal Crossing Local Services, Inc.-ct
203-897StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-898WallingfordBrooks Fiber Communications Of Connecticut Inc-ct
203-899NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-901HartfordSprint Spectrum L.p.
203-902HartfordGlobal Naps, Inc. - Ct
203-903HartfordLevel 3 Communications, Llc - Ct
203-904WallingfordSprint Spectrum L.p.
203-905HartfordTeleport Communications America, Llc - Ct
203-906WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-907HartfordChoice One Communications, Inc. - Ct
203-908BloomfieldOmnipoint Communications, Inc. - Ct
203-909MiddletownCellco Partnership Dba Verizon Wireless - Ct
203-910WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-912WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-913WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-914WallingfordCablevision Lightpath, Inc. - Ct
203-915WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-916StamfordLevel 3 Communications, Llc - Ct
203-917WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-918MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-919BloomfieldOmnipoint Communications, Inc. - Ct
203-920StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-921StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-922DerbySouthern New England Telco Dba Frontier Comm Of Ct
203-923WallingfordBrooks Fiber Communications Of Connecticut Inc-ct
203-924DerbySouthern New England Telco Dba Frontier Comm Of Ct
203-925SheltonSouthern New England Telco Dba Frontier Comm Of Ct
203-926SheltonSouthern New England Telco Dba Frontier Comm Of Ct
203-927WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-928New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-929SheltonSouthern New England Telco Dba Frontier Comm Of Ct
203-930New YorkGlobal Crossing Local Services, Inc.-ct
203-931West HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-932West HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-933West HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-934West HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-935StamfordGlobal Crossing Local Services, Inc.-ct
203-936New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-937West HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-938ReddingSouthern New England Telco Dba Frontier Comm Of Ct
203-939WallingfordCablevision Lightpath, Inc. - Ct
203-940WallingfordSouthern New England Telco Dba Frontier Comm Of Ct
203-941HartfordBandwidth.com Clec, Llc - Ct
203-942WallingfordSprint Spectrum L.p.
203-943WallingfordSprint Spectrum L.p.
203-944SheltonSouthern New England Telco Dba Frontier Comm Of Ct
203-945MiddletownSouthern New England Telco Dba Frontier Comm Of Ct
203-946New HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-947MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-948WallingfordSprint Spectrum L.p.
203-949WallingfordSouthern New England Telco Dba Frontier Comm Of Ct
203-951StamfordTeleport Communications America, Llc - Ct
203-952WallingfordSprint Spectrum L.p.
203-953WallingfordSprint Spectrum L.p.
203-954HartfordChoice One Communications, Inc. - Ct
203-955StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-956NorwalkCablevision Lightpath, Inc. - Ct
203-957WallingfordCablevision Lightpath, Inc. - Ct
203-961StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-962WallingfordSouthern New England Telco Dba Frontier Comm Of Ct
203-963NorwalkSouthern New England Telco Dba Frontier Comm Of Ct
203-964StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-965StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-966New CanaanSouthern New England Telco Dba Frontier Comm Of Ct
203-967StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-968StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-969StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-970WallingfordCablevision Lightpath, Inc. - Ct
203-971GreenwichCablevision Lightpath, Inc. - Ct
203-972New CanaanSouthern New England Telco Dba Frontier Comm Of Ct
203-973StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-974HartfordTeleport Communications America, Llc - Ct
203-975StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-977StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-978StamfordSouthern New England Telco Dba Frontier Comm Of Ct
203-979MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-980WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-981WallingfordSprint Spectrum L.p.
203-982WallingfordSprint Spectrum L.p.
203-983MelvilleConversent Communications Of Connecticut, Llc
203-984WallingfordCellco Partnership Dba Verizon Wireless - Ct
203-985North HavenSouthern New England Telco Dba Frontier Comm Of Ct
203-986StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-987New YorkLevel 3 Communications, Llc - Ct
203-988MiddletownNew Cingular Wireless Pcs, Llc - Dc
203-989StamfordLevel 3 Communications, Llc - Ct
203-990StamfordBrooks Fiber Communications Of Connecticut Inc-ct
203-991NorwalkSouthern New England Telco
203-992New YorkCablevision Lightpath, Inc. - Ct
203-993BloomfieldCellco Partnership Dba Verizon Wireless - Ct
203-994WallingfordSprint Spectrum L.p.
203-996HartfordSprint Spectrum L.p.
203-997BloomfieldOmnipoint Communications, Inc. - Ct
203-998WallingfordLevel 3 Communications, Llc - Ct
203-999HartfordSprint Spectrum L.p.