203 Area Code in Connecticut, United States
Description
Area code 203 is one of the original codes established in 1947 and serves southwestern Connecticut, including cities such as Bridgeport, New Haven, Stamford, and Norwalk. It was the only area code in Connecticut until 1995, when 860 was created to serve the rest of the state. In 2009, 203 was overlaid with area code 475, making ten-digit dialing mandatory across the region. The 203 area is known for its proximity to New York City and its affluent suburban communities, as well as major educational institutions like Yale University. The area is a mix of industrial history, academic prestige, and financial prosperity. Despite the overlay, 203 remains a highly recognizable and preferred area code for businesses and residents in the region.
Time & Time Zone
Time zone:
Eastern (GMT -05:00) Current time:
Map
Major Cities
| City | Prefixes |
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Counties
| County | Prefixes |
|---|---|
| Fairfield | |
| New Haven | |
| Hartford | |
| Litchfield | |
| Middlesex | |
| Westchester | |
| New York | |
| Nassau | |
| New London | |
| Richmond | |
| Putnam |
Telephone Carriers
| Carrier | Type | Prefixes (%) |
|---|---|---|
| Southern New England Telephone Co | Landline | 61% |
| New Cingular Wireless Pcs Llc Dc | Wireless | 5% |
| Cellco Partnership Dba Verizon Wireless Ct | Wireless | 5% |
| Sprint Spectrum L P | Wireless | 4% |
| Brooks Fiber Communications Of Connecticut Inc Ct | Landline | 3% |
| Verizon New York Inc | Landline | 3% |
| Cablevision Lightpath Inc Ct | Landline | 3% |
| Teleport Communications Group New York Ct | Landline | 2% |
| Level 3 Communications Llc Ct | Landline | 2% |
| Omnipoint Communications Inc Ct | Wireless | 2% |
| Global Crossing Local Services Inc Ct | Landline | 2% |
| Paetec Communications Inc Ct | Landline | 1% |
| Choice One Communications Inc Ct | Landline | 1% |
| At T Local | Landline | 1% |
| Usa Mobility Wireless Inc | Wireless | 1% |
| American Messaging Am Inc | Wireless | < 1% |
| Paetec Communications Inc Ny | Landline | < 1% |
| Teleport Communications Group Ny | Landline | < 1% |
| Global Naps Inc Ct | Landline | < 1% |
| Ctc Communications Corp Ct | Landline | < 1% |
| Metro Pcs Inc | Wireless | < 1% |
| Peerless Network Of Connecticut Llc Ct | Wireless | < 1% |
| Mcimetro Access Transmission Services Llc | Landline | < 1% |
| Conversent Communications Of Connecticut Llc | Landline | < 1% |
| Comcast Phone Of Connecticut Inc Ct | Landline | < 1% |
| Broadwing Communications Llc Ct | Landline | < 1% |
| Bandwidth Com Clec Llc Ct | Landline | < 1% |
| Sbc Internet Services Inc | Landline | < 1% |
| Global Naps Inc Ri | Landline | < 1% |
| Cox Connecticut Telecom Llc | Landline | < 1% |
Prefixes
| Prefix | City | Carrier | Type |
|---|---|---|---|
| Hamden | Southern New England Telephone Co. | Landline | |
| Wilton | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Patterson | Omnipoint Communications, Inc. - Ct | Wireless | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| Southbury | Southern New England Telephone Co. | Landline | |
| New Fairfield | Teleport Communications Group - New York - Ct | Landline | |
| Westport | Cablevision Lightpath, Inc. - Ct | Landline | |
| Westport | Southern New England Telephone Co. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Danbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | American Messaging (am), Inc. | Wireless | |
| Greenwich | Cablevision Lightpath, Inc. - Ct | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Weston | Southern New England Telephone Co. | Landline | |
| Bethel | Southern New England Telephone Co. | Landline | |
| Guilford | Southern New England Telephone Co. | Landline | |
| Danbury | Sprint Spectrum L.p. | Wireless | |
| Greenwich | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Branford | Comcast Phone of Connecticut, Inc. - Ct | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Milford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Danbury | Sprint Spectrum L.p. | Wireless | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Norwalk | Usa Mobility Wireless, Inc. | Wireless | |
| Madison | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Omnipoint Communications, Inc. - Ct | Wireless | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Newtown | Global Crossing Local Services, Inc.-ct | Landline | |
| Stamford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Ansonia | Southern New England Telephone Co. | Landline | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Waterbury | Metro Pcs, Inc. | Wireless | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Waterbury | Paetec Communications, Inc. - Ct | Landline | |
| Cheshire | Cox Connecticut Telecom, Llc | Landline | |
| Greenwich | Verizon New York, Inc. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Oxford | Southern New England Telephone Co. | Landline | |
| Stratford | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Danbury | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Middlebury | Southern New England Telephone Co. | Landline | |
| New Milford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Branford | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Haven | Choice One Communications, Inc. - Ct | Landline | |
| Ansonia | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Stratford | Southern New England Telephone Co. | Landline | |
| Shelton | Cablevision Lightpath, Inc. - Ct | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Wallingford | Teleport Communications Group - New York - Ct | Landline | |
| Danbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Orange | Southern New England Telephone Co. | Landline | |
| Danbury | Paetec Communications, Inc. - Ct | Landline | |
| Norwalk | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Shelton | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Fairfield | Southern New England Telephone Co. | Landline | |
| Hartford | Southern New England Telephone Co. | Landline | |
| Fairfield | Paetec Communications, Inc. - Ct | Landline | |
| Greenwich | Verizon New York, Inc. | Landline | |
| New Haven | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stratford | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Woodbury | Southern New England Telephone Co. | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | At&t Local | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Bethel | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Ansonia | Global Crossing Local Services, Inc.-ct | Landline | |
| Wolcott | Southern New England Telephone Co. | Landline | |
| Norwalk | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Waterbury | Sprint Spectrum L.p. | Wireless | |
| Fairfield | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stamford | Sprint Spectrum L.p. | Wireless | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| Wilton | At&t Local | Landline | |
| Stamford | Global Naps, Inc. - Ct | Landline | |
| Greenwich | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Meriden | At&t Local | Landline | |
| Redding | Southern New England Telephone Co. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Greenwich | Paetec Communications, Inc. - Ny | Landline | |
| Chappaqua | Verizon New York, Inc. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Middlebury | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Branford | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Milford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Greenwich | Teleport Communications Group - Ny | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Beacon Falls | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Woodbury | Southern New England Telephone Co. | Landline | |
| Darien | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Meriden | Paetec Communications, Inc. - Ct | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Orange | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Waterbury | Peerless Network of Connecticut, Llc - Ct | Wireless | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Stamford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| New Haven | Southern New England Telephone Co. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Wilton | Southern New England Telephone Co. | Landline | |
| Middlebury | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Stamford | Choice One Communications, Inc. - Ct | Landline | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Wireless | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| North Branford | Southern New England Telephone Co. | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Trumbull | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Oxford | Teleport Communications Group - New York - Ct | Landline | |
| Bridgeport | Omnipoint Communications, Inc. - Ct | Wireless | |
| Milford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| Milford | Paetec Communications, Inc. - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Middlebury | Southern New England Telephone Co. | Landline | |
| Waterbury | At&t Local | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Stratford | Sprint Spectrum L.p. | Wireless | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Guilford | Southern New England Telephone Co. | Landline | |
| Danbury | New Cingular Wireless Pcs, Llc - Dc | Landline | |
| Ansonia | Southern New England Telephone Co. | Landline | |
| Bridgeport | Cablevision Lightpath, Inc. - Ct | Wireless | |
| Easton | Southern New England Telephone Co. | Landline | |
| Woodbury | Southern New England Telephone Co. | Landline | |
| Westport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Ansonia | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Glastonbury | Teleport Communications Group - New York - Ct | Landline | |
| Monroe | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Naugatuck | Choice One Communications, Inc. - Ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Shelton | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Omnipoint Communications, Inc. - Ct | Wireless | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Usa Mobility Wireless, Inc. | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| Bethel | Southern New England Telephone Co. | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Avon | At&t Local | Landline | |
| Stratford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| West Hartford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| Weston | Southern New England Telephone Co. | Landline | |
| Northford | Southern New England Telephone Co. | Landline | |
| Southbury | Teleport Communications Group - New York - Ct | Landline | |
| Weston | Southern New England Telephone Co. | Landline | |
| New Haven | Teleport Communications Group - New York - Ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Westport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| New Milford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Guilford | Southern New England Telephone Co. | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Danbury | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Middlebury | Southern New England Telephone Co. | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| Norwalk | Usa Mobility Wireless, Inc. | Wireless | |
| Newtown | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| Trumbull | Level 3 Communications, Llc - Ct | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Greenwich | Global Crossing Local Services, Inc.-ct | Landline | |
| Seymour | Southern New England Telephone Co. | Landline | |
| Greenwich | Global Crossing Local Services, Inc.-ct | Landline | |
| Hamden | Sprint Spectrum L.p. | Wireless | |
| Westport | At&t Local | Landline | |
| Middletown | Sprint Spectrum L.p. | Wireless | |
| New Haven | Usa Mobility Wireless, Inc. | Wireless | |
| Guilford | Southern New England Telephone Co. | Landline | |
| New Haven | Ctc Communications Corp. - Ct | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Riverside | Teleport Communications Group - Ny | Landline | |
| Old Greenwich | Teleport Communications Group - New York - Ct | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| Bridgeport | Cablevision Lightpath, Inc. - Ct | Wireless | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| North Branford | Southern New England Telephone Co. | Landline | |
| North Branford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Canaan | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Hamden | Peerless Network of Connecticut, Llc - Ct | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Norwalk | Peerless Network of Connecticut, Llc - Ct | Wireless | |
| Bridgeport | Southern New England Telephone Co. | Wireless | |
| Madison | Global Crossing Local Services, Inc.-ct | Landline | |
| Westport | Southern New England Telephone Co. | Landline | |
| Greenwich | Southern New England Telephone Co. | Landline | |
| White Plains | Verizon New York, Inc. | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Easton | Cablevision Lightpath, Inc. - Ct | Landline | |
| Guilford | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| Hamden | Omnipoint Communications, Inc. - Ct | Wireless | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Cheshire | Teleport Communications Group - New York - Ct | Landline | |
| Meriden | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Stratford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Trumbull | Cablevision Lightpath, Inc. - Ct | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Branford | Choice One Communications, Inc. - Ct | Landline | |
| Cheshire | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Oxford | Southern New England Telephone Co. | Landline | |
| Milford | Southern New England Telephone Co. | Landline | |
| Hamden | Cablevision Lightpath, Inc. - Ct | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Milford | Southern New England Telephone Co. | Landline | |
| Meriden | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Wolcott | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Weston | Southern New England Telephone Co. | Landline | |
| Meriden | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Brookfield | Sprint Spectrum L.p. | Wireless | |
| Middletown | Paetec Communications, Inc. - Ct | Landline | |
| Easton | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Bridgeport | Metro Pcs, Inc. | Wireless | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Waterbury | Teleport Communications Group - New York - Ct | Landline | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| East Haven | Southern New England Telephone Co. | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Norwalk | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Greenwich | Cablevision Lightpath, Inc. - Ct | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| New Haven | Comcast Phone of Connecticut, Inc. - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| Norwalk | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Cos Cob | Sprint Spectrum L.p. | Landline | |
| Fairfield | Southern New England Telephone Co. | Landline | |
| Wolcott | Broadwing Communications, Llc - Ct | Landline | |
| Orange | Southern New England Telephone Co. | Landline | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | Teleport Communications Group - New York - Ct | Landline | |
| Beacon Falls | Southern New England Telephone Co. | Landline | |
| Old Greenwich | Southern New England Telephone Co. | Landline | |
| New Haven | Omnipoint Communications, Inc. - Ct | Wireless | |
| Shelton | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| Danbury | Sprint Spectrum L.p. | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Waterbury | Sprint Spectrum L.p. | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| New Canaan | Level 3 Communications, Llc - Ct | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Weston | Southern New England Telephone Co. | Landline | |
| Wallingford | Paetec Communications, Inc. - Ct | Landline | |
| Orange | Southern New England Telephone Co. | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Redding | Southern New England Telephone Co. | Landline | |
| Waterbury | Level 3 Communications, Llc - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Norwalk | Teleport Communications Group - New York - Ct | Landline | |
| Wilton | Cablevision Lightpath, Inc. - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Cheshire | Choice One Communications, Inc. - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Hamden | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Darien | Southern New England Telephone Co. | Landline | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Greenwich | Cox Connecticut Telecom, Llc | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Madison | Southern New England Telephone Co. | Landline | |
| Wilton | Southern New England Telephone Co. | Landline | |
| Bridgeport | Omnipoint Communications, Inc. - Ct | Wireless | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Ridgefield | Teleport Communications Group - New York - Ct | Landline | |
| Shelton | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Redding | Southern New England Telephone Co. | Landline | |
| Darien | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Stamford | Paetec Communications, Inc. - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Haven | Sbc Internet Services, Inc. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Greenwich | Cablevision Lightpath, Inc. - Ct | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Norwalk | Usa Mobility Wireless, Inc. | Wireless | |
| New Haven | Paetec Communications, Inc. - Ct | Landline | |
| Milford | Southern New England Telephone Co. | Landline | |
| Darien | Usa Mobility Wireless, Inc. | Wireless | |
| Greenwich | Verizon New York, Inc. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| Guilford | Choice One Communications, Inc. - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Westport | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Cheshire | Paetec Communications, Inc. - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Stamford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Milford | Southern New England Telephone Co. | Landline | |
| Westport | New Cingular Wireless Pcs, Llc - Dc | Landline | |
| Darien | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Guilford | Teleport Communications Group - New York - Ct | Landline | |
| Stamford | At&t Local | Landline | |
| Trumbull | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Milford | Southern New England Telephone Co. | Landline | |
| Hartford | Teleport Communications Group - New York - Ct | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Meriden | Metro Pcs, Inc. | Wireless | |
| Stratford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| Cheshire | Southern New England Telephone Co. | Landline | |
| Ansonia | Southern New England Telephone Co. | Landline | |
| Greenwich | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Greenwich | Level 3 Communications, Llc - Ct | Landline | |
| New Haven | Cablevision Lightpath, Inc. - Ct | Landline | |
| Waterbury | American Messaging (am), Inc. | Wireless | |
| East Haven | Southern New England Telephone Co. | Landline | |
| New Haven | Bandwidth.com Clec, Llc - Ct | Landline | |
| Newtown | Teleport Communications Group - New York - Ct | Landline | |
| Shelton | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Weston | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Stamford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Killingworth | Sprint Spectrum L.p. | Wireless | |
| Greenwich | Southern New England Telephone Co. | Landline | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Greenwich | Southern New England Telephone Co. | Landline | |
| Darien | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Waterbury | Choice One Communications, Inc. - Ct | Landline | |
| Bridgeport | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Waterbury | Sprint Spectrum L.p. | Wireless | |
| New Haven | Broadwing Communications, Llc - Ct | Landline | |
| Darien | Teleport Communications Group - New York - Ct | Landline | |
| Old Greenwich | Southern New England Telephone Co. | Landline | |
| Derby | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Danbury | Usa Mobility Wireless, Inc. | Wireless | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | American Messaging (am), Inc. | Wireless | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Redding | At&t Local | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| New Haven | American Messaging (am), Inc. | Wireless | |
| Old Greenwich | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Fairfield | Southern New England Telephone Co. | Landline | |
| Stamford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Orange | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Danbury | Sprint Spectrum L.p. | Wireless | |
| Stamford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Wireless | |
| Danbury | Level 3 Communications, Llc - Ct | Landline | |
| Norwalk | Omnipoint Communications, Inc. - Ct | Wireless | |
| Wilton | Cablevision Lightpath, Inc. - Ct | Landline | |
| Southbury | Southern New England Telephone Co. | Landline | |
| Fairfield | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Cheshire | Cablevision Lightpath, Inc. - Ct | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Greenwich | Omnipoint Communications, Inc. - Ct | Wireless | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Greenwich | At&t Local | Landline | |
| Stamford | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| North Haven | Teleport Communications Group - New York - Ct | Landline | |
| Seymour | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Norwalk | Conversent Communications of Connecticut, Llc | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Newtown | Southern New England Telephone Co. | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Global Crossing Local Services, Inc.-ct | Landline | |
| Branford | Global Crossing Local Services, Inc.-ct | Landline | |
| Bridgeport | Global Crossing Local Services, Inc.-ct | Landline | |
| Bridgeport | Choice One Communications, Inc. - Ct | Landline | |
| Stamford | Sprint Spectrum L.p. | Wireless | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Stamford | Omnipoint Communications, Inc. - Ct | Wireless | |
| Stamford | Teleport Communications Group - New York - Ct | Landline | |
| Ridgefield | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Darien | At&t Local | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| North Haven | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Branford | Comcast Phone of Connecticut, Inc. - Ct | Landline | |
| Oxford | Bandwidth.com Clec, Llc - Ct | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Darien | Paetec Communications, Inc. - Ct | Landline | |
| Meriden | Paetec Communications, Inc. - Ct | Landline | |
| Wilton | Teleport Communications Group - New York - Ct | Landline | |
| Shelton | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Trumbull | Teleport Communications Group - New York - Ct | Landline | |
| New Haven | Global Crossing Local Services, Inc.-ct | Landline | |
| New Haven | Comcast Phone of Connecticut, Inc. - Ct | Landline | |
| Oakdale | Choice One Communications, Inc. - Ct | Landline | |
| Shelton | Southern New England Telephone Co. | Landline | |
| New Haven | Level 3 Communications, Llc - Ct | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Guilford | Global Crossing Local Services, Inc.-ct | Landline | |
| Greenwich | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| North Branford | Teleport Communications Group - New York - Ct | Landline | |
| Redding | Cablevision Lightpath, Inc. - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Norwalk | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Meriden | Teleport Communications Group - New York - Ct | Landline | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Cos Cob | Southern New England Telephone Co. | Landline | |
| Westport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Norwalk | Level 3 Communications, Llc - Ct | Landline | |
| Madison | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Bridgeport | Usa Mobility Wireless, Inc. | Wireless | |
| South Windsor | Southern New England Telephone Co. | Landline | |
| New Haven | American Messaging (am), Inc. | Wireless | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Wilton | Level 3 Communications, Llc - Ct | Landline | |
| Waterbury | Omnipoint Communications, Inc. - Ct | Wireless | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Milford | Cablevision Lightpath, Inc. - Ct | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| Danbury | At&t Local | Landline | |
| Woodbury | Paetec Communications, Inc. - Ct | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| Norwalk | Usa Mobility Wireless, Inc. | Wireless | |
| Stamford | Broadwing Communications, Llc - Ct | Landline | |
| Meriden | Mcimetro Access Transmission Services Llc | Landline | |
| Madison | Choice One Communications, Inc. - Ct | Landline | |
| Waterbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Teleport Communications Group - New York - Ct | Landline | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Newtown | Southern New England Telephone Co. | Landline | |
| Fairfield | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Darien | Cablevision Lightpath, Inc. - Ct | Landline | |
| Redding | Southern New England Telephone Co. | Landline | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Norwalk | Omnipoint Communications, Inc. - Ct | Wireless | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Danbury | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Staten Island | Conversent Communications of Connecticut, Llc | Landline | |
| Norwalk | Cablevision Lightpath, Inc. - Ct | Landline | |
| Waterbury | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | Level 3 Communications, Llc - Ct | Landline | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Danbury | Omnipoint Communications, Inc. - Ct | Wireless | |
| Milford | Choice One Communications, Inc. - Ct | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| New Haven | Usa Mobility Wireless, Inc. | Wireless | |
| Southbury | Southern New England Telephone Co. | Landline | |
| New Canaan | Teleport Communications Group - New York - Ct | Landline | |
| North Salem | Global Crossing Local Services, Inc.-ct | Landline | |
| Stamford | Global Crossing Local Services, Inc.-ct | Landline | |
| North Haven | Southern New England Telephone Co. | Landline | |
| New Haven | Metro Pcs, Inc. | Wireless | |
| Naugatuck | Global Crossing Local Services, Inc.-ct | Landline | |
| Wilton | Southern New England Telephone Co. | Landline | |
| Naugatuck | Teleport Communications Group - New York - Ct | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Milford | Southern New England Telephone Co. | Landline | |
| Shelton | Global Crossing Local Services, Inc.-ct | Landline | |
| Danbury | Omnipoint Communications, Inc. - Ct | Wireless | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Stamford | Cablevision Lightpath, Inc. - Ct | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Waterbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Beacon Falls | Southern New England Telephone Co. | Landline | |
| Norwalk | Paetec Communications, Inc. - Ct | Landline | |
| Meriden | Omnipoint Communications, Inc. - Ct | Wireless | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Fairfield | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Norwalk | Sprint Spectrum L.p. | Wireless | |
| Shelton | Choice One Communications, Inc. - Ct | Landline | |
| Cos Cob | Verizon New York, Inc. | Landline | |
| Fairfield | Southern New England Telephone Co. | Landline | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Riverside | Global Crossing Local Services, Inc.-ct | Landline | |
| New Canaan | Southern New England Telephone Co. | Landline | |
| Wolcott | Southern New England Telephone Co. | Landline | |
| New Haven | Conversent Communications of Connecticut, Llc | Landline | |
| Stamford | Cablevision Lightpath, Inc. - Ct | Wireless | |
| New Haven | Teleport Communications Group - New York - Ct | Landline | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Fairfield | Global Crossing Local Services, Inc.-ct | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Fairfield | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Trumbull | Teleport Communications Group - New York - Ct | Landline | |
| Danbury | Southern New England Telephone Co. | Landline | |
| New Haven | Bandwidth.com Clec, Llc - Ct | Wireless | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Danbury | Global Crossing Local Services, Inc.-ct | Landline | |
| Waterbury | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Meriden | Cox Connecticut Telecom, Llc | Landline | |
| New Haven | Usa Mobility Wireless, Inc. | Wireless | |
| Madison | Southern New England Telephone Co. | Landline | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Waterbury | Sprint Spectrum L.p. | Wireless | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Darien | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Stamford | Ctc Communications Corp. - Ct | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Greenwich | Cablevision Lightpath, Inc. - Ct | Landline | |
| Ridgefield | Cablevision Lightpath, Inc. - Ct | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Bridgeport | Sprint Spectrum L.p. | Wireless | |
| Stamford | Southern New England Telephone Co. | Landline | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Milford | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Wolcott | Level 3 Communications, Llc - Ct | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Oxford | Global Crossing Local Services, Inc.-ct | Landline | |
| New Canaan | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Greenwich | Global Naps, Inc. - Ri | Landline | |
| Ridgefield | Sprint Spectrum L.p. | Wireless | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Norwalk | Level 3 Communications, Llc - Ct | Landline | |
| Trumbull | Southern New England Telephone Co. | Landline | |
| Stamford | Broadwing Communications, Llc - Ct | Landline | |
| Milford | Teleport Communications Group - New York - Ct | Landline | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Shelton | Paetec Communications, Inc. - Ct | Landline | |
| Meriden | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Waterbury | Sprint Spectrum L.p. | Wireless | |
| Darien | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Norwalk | At&t Local | Landline | |
| Stamford | Sprint Spectrum L.p. | Wireless | |
| Stamford | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Trumbull | Global Crossing Local Services, Inc.-ct | Landline | |
| Bridgeport | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Danbury | Southern New England Telephone Co. | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| New Canaan | Southern New England Telephone Co. | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| New Haven | Southern New England Telephone Co. | Landline | |
| Danbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Greenwich | Cablevision Lightpath, Inc. - Ct | Landline | |
| New Haven | Metro Pcs, Inc. | Wireless | |
| New Haven | Omnipoint Communications, Inc. - Ct | Wireless | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Fairfield | Cablevision Lightpath, Inc. - Ct | Landline | |
| New Haven | Sprint Spectrum L.p. | Wireless | |
| Greenwich | Sprint Spectrum L.p. | Wireless | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Hamden | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| New Haven | Omnipoint Communications, Inc. - Ct | Wireless | |
| Old Greenwich | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Westport | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Wallingford | Southern New England Telephone Co. | Landline | |
| Cheshire | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| New Canaan | Cablevision Lightpath, Inc. - Ct | Landline | |
| Bridgeport | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Norwalk | Southern New England Telephone Co. | Landline | |
| Bridgeport | Conversent Communications of Connecticut, Llc | Landline | |
| Shelton | Choice One Communications, Inc. - Ct | Landline | |
| Stamford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Stamford | Teleport Communications Group - New York - Ct | Landline | |
| Trumbull | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Monroe | Cellco Partnership Dba Verizon Wireless - Ct | Landline | |
| Shelton | Teleport Communications Group - New York - Ct | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Wallingford | Choice One Communications, Inc. - Ct | Landline | |
| Milford | Global Crossing Local Services, Inc.-ct | Landline | |
| Ridgefield | Southern New England Telephone Co. | Landline | |
| Cheshire | Southern New England Telephone Co. | Landline | |
| Stamford | Paetec Communications, Inc. - Ct | Landline | |
| Norwalk | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Waterbury | Omnipoint Communications, Inc. - Ct | Wireless | |
| Bridgeport | Usa Mobility Wireless, Inc. | Wireless | |
| Stratford | Brooks Fiber Communications of Connecticut Inc-ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Bridgeport | Teleport Communications Group - New York - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Waterbury | Southern New England Telephone Co. | Landline | |
| Waterbury | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Ansonia | Omnipoint Communications, Inc. - Ct | Wireless | |
| Stamford | Global Crossing Local Services, Inc.-ct | Landline | |
| West Haven | Southern New England Telephone Co. | Landline | |
| New Haven | At&t Local | Landline | |
| Greenwich | Verizon New York, Inc. | Landline | |
| Stamford | Level 3 Communications, Llc - Ct | Landline | |
| Stamford | Southern New England Telephone Co. | Landline | |
| New Haven | Global Naps, Inc. - Ct | Landline | |
| New Haven | New Cingular Wireless Pcs, Llc - Dc | Wireless | |
| Wolcott | Teleport Communications Group - New York - Ct | Landline | |
| Wallingford | Global Crossing Local Services, Inc.-ct | Landline | |
| Meriden | Southern New England Telephone Co. | Landline | |
| New Haven | Cellco Partnership Dba Verizon Wireless - Ct | Wireless | |
| Waterbury | Ctc Communications Corp. - Ct | Landline | |
| Shelton | Southern New England Telephone Co. | Landline | |
| Bridgeport | Omnipoint Communications, Inc. - Ct | Wireless | |
| Granby | Paetec Communications, Inc. - Ct | Landline | |
| Bridgeport | Southern New England Telephone Co. | Landline | |
| Stamford | Paetec Communications, Inc. - Ct | Landline |