Area Code 203 Location - Connecticut
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Cities in Areacode 203
- Bridgeport
- Danbury
- East Haven
- Meriden
- Milford
- Naugatuck
- New Haven
- North Haven
- Norwalk
- Shelton
- Stamford
- Stratford
- Trumbull
- Waterbury
- West Haven
- Westport
| PREFIX | USAGE | PRIMARY CITY | CARRIER |
|---|---|---|---|
| 203-519- | Wireless | Waterbury | Sprint Spectrum L.p. |
| 203-237- | Landline | Meriden | Southern New England Telephone Co. |
| 203-250- | Landline | Cheshire | Southern New England Telephone Co. |
| 203-906- | Wireless | Derby | Cellco Partnership DBA Verizon Wireless |
| 203-605- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-334- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-351- | Landline | Stamford | Southern New England Telephone Co. |
| 203-204- | Landline | Guilford | Teleport Communications America |
| 203-547- | Landline | Stamford | Global Naps |
| 203-696- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-764- | Landline | New Haven | Southern New England Telephone Co. |
| 203-361- | Landline | New Haven | Level 3 Communications |
| 203-865- | Landline | New Haven | Southern New England Telephone Co. |
| 203-357- | Landline | Stamford | Southern New England Telephone Co. |
| 203-912- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-527- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-336- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-652- | Landline | Stamford | Paetec Communications |
| 203-620- | Landline | Darien | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-859- | Landline | New Haven | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-750- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-579- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-999- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-779- | Landline | Madison | Choice One Communications |
| 203-200- | Landline | New Haven | Bandwidth.com Clec |
| 203-384- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-884- | Landline | Guilford | Global Crossing Local Services-ct |
| 203-790- | Landline | Danbury | Southern New England Telephone Co. |
| 203-283- | Landline | Milford | Cablevision Lightpath |
| 203-278- | Wireless | Derby | Omnipoint Communications |
| 203-674- | Landline | Stamford | Southern New England Telephone Co. |
| 203-344- | Landline | Old Greenwich | Cablevision Lightpath |
| 203-627- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-701- | Landline | New Haven | AT&T Local |
| 203-241- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-496- | Wireless | Greenwich | Sprint Spectrum L.p. |
| 203-771- | Landline | New Haven | Southern New England Telephone Co. |
| 203-944- | Landline | Huntington | Southern New England Telephone Co. |
| 203-493- | Landline | Redding | Level 3 Communications |
| 203-272- | Landline | Cheshire | Southern New England Telephone Co. |
| 203-993- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-589- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-537- | Wireless | Meriden | Sprint Spectrum L.p. |
| 203-592- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-994- | Wireless | Danbury | Sprint Spectrum L.p. |
| 203-934- | Landline | New Haven | Southern New England Telephone Co. |
| 203-330- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-987- | Landline | Greenwich | Level 3 Communications |
| 203-778- | Landline | Danbury | Southern New England Telephone Co. |
| 203-712- | Landline | Huntington | Global Crossing Local Services-ct |
| 203-748- | Landline | Danbury | Southern New England Telephone Co. |
| 203-213- | Wireless | Meriden | New Cingular Wireless PCS - DC |
| 203-583- | Landline | Bridgeport | Level 3 Communications |
| 203-671- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-578- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-575- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-230- | Landline | New Haven | Southern New England Telephone Co. |
| 203-595- | Landline | Stamford | Southern New England Telephone Co. |
| 203-730- | Landline | Danbury | Southern New England Telephone Co. |
| 203-285- | Landline | New Haven | Teleport Communications America |
| 203-665- | Landline | Stamford | Paetec Communications |
| 203-880- | Landline | Trumbull | Teleport Communications America |
| 203-731- | Landline | Danbury | Southern New England Telephone Co. |
| 203-404- | Landline | New Haven | Broadwing Communications |
| 203-710- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-607- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-832- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-977- | Landline | Stamford | Southern New England Telephone Co. |
| 203-836- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-428- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-855- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-664- | Landline | Redding | Cablevision Lightpath |
| 203-917- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-461- | Landline | Stamford | Southern New England Telephone Co. |
| 203-887- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-666- | Landline | Bridgeport | Level 3 Communications |
| 203-703- | Landline | Stamford | Southern New England Telephone Co. |
| 203-777- | Landline | New Haven | Southern New England Telephone Co. |
| 203-913- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-784- | Landline | New Haven | Southern New England Telephone Co. |
| 203-713- | Landline | Milford | Global Crossing Local Services-ct |
| 203-422- | Landline | Greenwich | Verizon New York |
| 203-724- | Landline | Stamford | Choice One Communications |
| 203-974- | Landline | New Haven | Teleport Communications America |
| 203-232- | Wireless | Waterbury | Cellco Partnership DBA Verizon Wireless |
| 203-758- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-984- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-633- | Landline | Wolcott | Level 3 Communications |
| 203-266- | Landline | Woodbury | Southern New England Telephone Co. |
| 203-406- | Landline | Stamford | Southern New England Telephone Co. |
| 203-709- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-544- | Landline | Redding | Southern New England Telephone Co. |
| 203-352- | Landline | Stamford | Southern New England Telephone Co. |
| 203-829- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-407- | Landline | New Haven | Southern New England Telephone Co. |
| 203-739- | Landline | Danbury | Southern New England Telephone Co. |
| 203-898- | Landline | Darien | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-767- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-504- | Landline | Stamford | Ctc Communications Corp. |
| 203-862- | Landline | Greenwich | Verizon New York |
| 203-893- | Wireless | Derby | Cellco Partnership DBA Verizon Wireless |
| 203-793- | Landline | Wallingford | Global Crossing Local Services-ct |
| 203-715- | Wireless | Meriden | Omnipoint Communications |
| 203-663- | Landline | Stamford | Paetec Communications |
| 203-608- | Landline | Meriden | Paetec Communications |
| 203-541- | Landline | Stamford | Southern New England Telephone Co. |
| 203-304- | Landline | Newtown | Teleport Communications America |
| 203-454- | Landline | Westport | Southern New England Telephone Co. |
| 203-704- | Landline | Wolcott | Broadwing Communications |
| 203-342- | Wireless | Bridgeport | Usa Mobility Wireless |
| 203-262- | Landline | Southbury | Southern New England Telephone Co. |
| 203-419- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-503- | Landline | New Haven | Southern New England Telephone Co. |
| 203-572- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-995- | Landline | Bridgeport | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-552- | Landline | Greenwich | Verizon New York |
| 203-966- | Landline | New Canaan | Southern New England Telephone Co. |
| 203-331- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-619- | Landline | New Haven | Southern New England Telephone Co. |
| 203-776- | Landline | New Haven | Southern New England Telephone Co. |
| 203-446- | Landline | Derby | Teleport Communications America |
| 203-546- | Landline | Danbury | Teleport Communications America |
| 203-520- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-895- | Wireless | Trumbull | New Cingular Wireless PCS - DC |
| 203-340- | Landline | Greenwich | Cablevision Lightpath |
| 203-882- | Landline | Milford | Southern New England Telephone Co. |
| 203-923- | Landline | Bridgeport | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-840- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-949- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-347- | Landline | Greenwich | Level 3 Communications |
| 203-314- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-727- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-857- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-549- | Landline | Bridgeport | Choice One Communications |
| 203-377- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-732- | Landline | Ansonia | Southern New England Telephone Co. |
| 203-946- | Landline | New Haven | Southern New England Telephone Co. |
| 203-498- | Landline | New Haven | Southern New England Telephone Co. |
| 203-389- | Landline | New Haven | Southern New England Telephone Co. |
| 203-251- | Landline | Stamford | Southern New England Telephone Co. |
| 203-835- | Wireless | Norwalk | Usa Mobility Wireless |
| 203-851- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-229- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-753- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-239- | Landline | New Haven | Southern New England Telephone Co. |
| 203-440- | Landline | Meriden | Cox Connecticut Telecom |
| 203-726- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-395- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-524- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-502- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-742- | Landline | Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-890- | Landline | Stamford | Southern New England Telephone Co. |
| 203-695- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-932- | Landline | New Haven | Southern New England Telephone Co. |
| 203-345- | Landline | Bridgeport | Cablevision Lightpath |
| 203-349- | Landline | Westport | Teleport Communications America |
| 203-415- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-981- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-624- | Landline | New Haven | Southern New England Telephone Co. |
| 203-568- | Landline | Waterbury | Paetec Communications |
| 203-980- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-513- | Landline | New Haven | AT&T Local |
| 203-219- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-763- | Landline | Fairfield | Level 3 Communications |
| 203-597- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-483- | Landline | Branford | Southern New England Telephone Co. |
| 203-841- | Landline | Waterbury | Choice One Communications |
| 203-787- | Landline | New Haven | Southern New England Telephone Co. |
| 203-828- | Landline | Seymour | Global Crossing Local Services-ct |
| 203-990- | Landline | Old Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-743- | Landline | Danbury | Southern New England Telephone Co. |
| 203-866- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-970- | Landline | Norwalk | Cablevision Lightpath |
| 203-775- | Landline | Danbury | Southern New England Telephone Co. |
| 203-505- | Landline | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-310- | Landline | New Canaan | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-723- | Landline | Naugatuck | Southern New England Telephone Co. |
| 203-604- | Landline | Stamford | Broadwing Communications |
| 203-720- | Landline | Naugatuck | Southern New England Telephone Co. |
| 203-322- | Landline | Stamford | Southern New England Telephone Co. |
| 203-737- | Landline | New Haven | Southern New England Telephone Co. |
| 203-963- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-447- | Landline | Huntington | Teleport Communications America |
| 203-246- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-875- | Landline | Darien | AT&T Local |
| 203-288- | Landline | New Haven | Southern New England Telephone Co. |
| 203-543- | Wireless | Bridgeport | Omnipoint Communications |
| 203-818- | Landline | Norwalk | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-245- | Landline | Madison | Southern New England Telephone Co. |
| 203-618- | Landline | Greenwich | Verizon New York |
| 203-398- | Wireless | Norwalk | Usa Mobility Wireless |
| 203-756- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-754- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-533- | Landline | Guilford | Level 3 Communications |
| 203-423- | Landline | Wilton | Teleport Communications America |
| 203-453- | Landline | Guilford | Southern New England Telephone Co. |
| 203-631- | Wireless | Meriden | New Cingular Wireless PCS - DC |
| 203-216- | Wireless | Westport | New Cingular Wireless PCS - DC |
| 203-299- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-479- | Landline | New Haven | Southern New England Telephone Co. |
| 203-208- | Landline | Branford | Comcast Phone Of Connecticut |
| 203-289- | Wireless | Danbury | Usa Mobility Wireless |
| 203-852- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-392- | Landline | New Haven | Southern New England Telephone Co. |
| 203-741- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-796- | Landline | Danbury | Southern New England Telephone Co. |
| 203-425- | Landline | Stamford | Southern New England Telephone Co. |
| 203-264- | Landline | Southbury | Southern New England Telephone Co. |
| 203-594- | Landline | New Canaan | Cablevision Lightpath |
| 203-557- | Landline | Westport | Cablevision Lightpath |
| 203-420- | Landline | Meriden | Southern New England Telephone Co. |
| 203-558- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-806- | Landline | Cheshire | Teleport Communications America |
| 203-234- | Landline | New Haven | Southern New England Telephone Co. |
| 203-983- | Landline | Greenwich | Conversent Communications Of Connecticut |
| 203-988- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-408- | Landline | Redding | AT&T Local |
| 203-728- | Landline | Stamford | Southern New England Telephone Co. |
| 203-354- | Landline | Norwalk | Cablevision Lightpath |
| 203-667- | Wireless | Stamford | Sprint Spectrum L.p. |
| 203-369- | Landline | Old Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-492- | Landline | New Haven | Southern New England Telephone Co. |
| 203-228- | Wireless | Waterbury | Cellco Partnership DBA Verizon Wireless |
| 203-749- | Landline | Danbury | Southern New England Telephone Co. |
| 203-823- | Landline | New Haven | Comcast Phone Of Connecticut |
| 203-686- | Landline | Meriden | Southern New England Telephone Co. |
| 203-647- | Landline | Milford | Paetec Communications |
| 203-953- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-574- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-313- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-888- | Landline | Seymour | Southern New England Telephone Co. |
| 203-734- | Landline | Ansonia | Southern New England Telephone Co. |
| 203-275- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-706- | Landline | Waterbury | Ctc Communications Corp. |
| 203-863- | Landline | Greenwich | Verizon New York |
| 203-358- | Landline | Stamford | Southern New England Telephone Co. |
| 203-945- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-653- | Landline | Stamford | Paetec Communications |
| 203-774- | Landline | Wallingford | Choice One Communications |
| 203-359- | Landline | Stamford | Southern New England Telephone Co. |
| 203-323- | Landline | Stamford | Southern New England Telephone Co. |
| 203-975- | Landline | Stamford | Southern New England Telephone Co. |
| 203-586- | Landline | Woodbury | Teleport Communications America |
| 203-270- | Landline | Newtown | Southern New England Telephone Co. |
| 203-651- | Landline | Cheshire | Choice One Communications |
| 203-258- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-296- | Landline | Bridgeport | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-338- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-714- | Landline | Naugatuck | Global Crossing Local Services-ct |
| 203-587- | Landline | Redding | Cablevision Lightpath |
| 203-856- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-648- | Landline | Danbury | Level 3 Communications |
| 203-385- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-518- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-654- | Landline | New Haven | Southern New England Telephone Co. |
| 203-883- | Landline | Stamford | Level 3 Communications |
| 203-427- | Landline | Meriden | Mcimetro Access Transmission Services LLC |
| 203-393- | Landline | New Haven | Southern New England Telephone Co. |
| 203-465- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-477- | Wireless | New Haven | Usa Mobility Wireless |
| 203-327- | Landline | Stamford | Southern New England Telephone Co. |
| 203-261- | Landline | Trumbull | Southern New England Telephone Co. |
| 203-293- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-762- | Landline | Wilton | Southern New England Telephone Co. |
| 203-820- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-281- | Landline | New Haven | Southern New England Telephone Co. |
| 203-403- | Landline | Ridgefield | Teleport Communications America |
| 203-885- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-386- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-613- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-972- | Landline | New Canaan | Southern New England Telephone Co. |
| 203-350- | Landline | Madison | Teleport Communications America |
| 203-877- | Landline | Milford | Southern New England Telephone Co. |
| 203-341- | Landline | Westport | Southern New England Telephone Co. |
| 203-740- | Landline | Danbury | Southern New England Telephone Co. |
| 203-691- | Landline | New Haven | Southern New England Telephone Co. |
| 203-542- | Landline | Greenwich | AT&T Local |
| 203-792- | Landline | Danbury | Southern New England Telephone Co. |
| 203-933- | Landline | New Haven | Southern New England Telephone Co. |
| 203-210- | Landline | Wilton | Cablevision Lightpath |
| 203-814- | Landline | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-707- | Wireless | Waterbury | Cellco Partnership DBA Verizon Wireless |
| 203-927- | Landline | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-705- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-472- | Unknown | Southern New England Telephone Co. | |
| 203-616- | Landline | Danbury | Global Crossing Local Services-ct |
| 203-675- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-623- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-656- | Landline | Darien | Southern New England Telephone Co. |
| 203-615- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-815- | Landline | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-957- | Landline | Norwalk | Cablevision Lightpath |
| 203-307- | Landline | Fairfield | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-848- | Landline | New Haven | Conversent Communications Of Connecticut |
| 203-412- | Wireless | New Haven | American Messaging (am) |
| 203-457- | Landline | Guilford | Southern New England Telephone Co. |
| 203-538- | Landline | Huntington | Choice One Communications |
| 203-757- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-476- | Unknown | Southern New England Telephone Co. | |
| 203-227- | Landline | Westport | Southern New England Telephone Co. |
| 203-982- | Wireless | Waterbury | Sprint Spectrum L.p. |
| 203-801- | Landline | New Canaan | Southern New England Telephone Co. |
| 203-905- | Landline | Stamford | Teleport Communications America |
| 203-612- | Landline | Bridgeport | Global Crossing Local Services-ct |
| 203-935- | Landline | Meriden | Global Crossing Local Services-ct |
| 203-462- | Landline | Stamford | Southern New England Telephone Co. |
| 203-401- | Landline | New Haven | Southern New England Telephone Co. |
| 203-717- | Landline | Greenwich | Cablevision Lightpath |
| 203-248- | Landline | New Haven | Southern New England Telephone Co. |
| 203-460- | Landline | Danbury | AT&T Local |
| 203-585- | Landline | Stamford | Southern New England Telephone Co. |
| 203-918- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-362- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-312- | Landline | Danbury | Southern New England Telephone Co. |
| 203-672- | Landline | New Haven | Paetec Communications |
| 203-609- | Landline | Stamford | Southern New England Telephone Co. |
| 203-487- | Landline | Stamford | Global Crossing Local Services-ct |
| 203-516- | Landline | Derby | Global Crossing Local Services-ct |
| 203-602- | Landline | Stamford | Southern New England Telephone Co. |
| 203-971- | Landline | Greenwich | Cablevision Lightpath |
| 203-849- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-532- | Landline | Greenwich | Verizon New York |
| 203-308- | Wireless | Derby | Cellco Partnership DBA Verizon Wireless |
| 203-940- | Landline | Stamford | Southern New England Telephone Co. |
| 203-941- | Landline | Seymour | Bandwidth.com Clec |
| 203-628- | Landline | Danbury | Cablevision Lightpath |
| 203-854- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-437- | Landline | Waterbury | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-525- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-751- | Landline | Ansonia | Southern New England Telephone Co. |
| 203-458- | Landline | Guilford | Southern New England Telephone Co. |
| 203-225- | Landline | Huntington | Southern New England Telephone Co. |
| 203-215- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-396- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-247- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-886- | Landline | Meriden | Choice One Communications |
| 203-973- | Landline | Stamford | Southern New England Telephone Co. |
| 203-279- | Wireless | Bridgeport | Usa Mobility Wireless |
| 203-335- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-992- | Landline | Greenwich | Cablevision Lightpath |
| 203-432- | Landline | New Haven | Southern New England Telephone Co. |
| 203-317- | Landline | Meriden | Southern New England Telephone Co. |
| 203-914- | Landline | Norwalk | Cablevision Lightpath |
| 203-948- | Wireless | Danbury | Sprint Spectrum L.p. |
| 203-813- | Landline | Greenwich | Teleport Communications Group - NY |
| 203-606- | Wireless | New Haven | Omnipoint Communications |
| 203-478- | Unknown | Southern New England Telephone Co. | |
| 203-799- | Landline | New Haven | Southern New England Telephone Co. |
| 203-744- | Landline | Danbury | Southern New England Telephone Co. |
| 203-486- | Landline | Southbury | Southern New England Telephone Co. |
| 203-736- | Landline | Ansonia | Southern New England Telephone Co. |
| 203-253- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-567- | Landline | Huntington | Paetec Communications |
| 203-202- | Landline | Darien | Cablevision Lightpath |
| 203-481- | Landline | Branford | Southern New England Telephone Co. |
| 203-469- | Landline | New Haven | Southern New England Telephone Co. |
| 203-434- | Wireless | Norwalk | Omnipoint Communications |
| 203-235- | Landline | Meriden | Southern New England Telephone Co. |
| 203-416- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-444- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-600- | Wireless | Meriden | Metro PCS |
| 203-388- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-761- | Landline | Wilton | Southern New England Telephone Co. |
| 203-526- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-961- | Landline | Stamford | Southern New England Telephone Co. |
| 203-861- | Landline | Greenwich | Verizon New York |
| 203-954- | Landline | Derby | Choice One Communications |
| 203-400- | Wireless | Trumbull | New Cingular Wireless PCS - DC |
| 203-996- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-436- | Landline | New Haven | Southern New England Telephone Co. |
| 203-306- | Landline | Milford | Choice One Communications |
| 203-702- | Landline | Danbury | Paetec Communications |
| 203-456- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-553- | Landline | New Haven | Southern New England Telephone Co. |
| 203-650- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-614- | Landline | Stamford | Southern New England Telephone Co. |
| 203-759- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-332- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-500- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-685- | Wireless | Bridgeport | Omnipoint Communications |
| 203-955- | Landline | Fairfield | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-490- | Landline | Naugatuck | Teleport Communications America |
| 203-260- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-367- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-441- | Landline | Wolcott | Teleport Communications America |
| 203-680- | Wireless | Waterbury | Southern New England Telephone Co. |
| 203-236- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-798- | Landline | Danbury | Southern New England Telephone Co. |
| 203-290- | Wireless | Bridgeport | Omnipoint Communications |
| 203-559- | Landline | Darien | Teleport Communications America |
| 203-405- | Landline | Woodbury | Paetec Communications |
| 203-746- | Landline | Danbury | Southern New England Telephone Co. |
| 203-838- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-881- | Landline | Seymour | Southern New England Telephone Co. |
| 203-316- | Landline | Stamford | Southern New England Telephone Co. |
| 203-951- | Landline | Milford | Teleport Communications America |
| 203-402- | Landline | Huntington | Southern New England Telephone Co. |
| 203-769- | Landline | Greenwich | Verizon New York |
| 203-397- | Landline | New Haven | Southern New England Telephone Co. |
| 203-390- | Wireless | New Haven | Usa Mobility Wireless |
| 203-842- | Landline | Stamford | Global Crossing Local Services-ct |
| 203-373- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-689- | Landline | New Haven | AT&T Local |
| 203-517- | Landline | Stamford | Level 3 Communications |
| 203-224- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-430- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-474- | Unknown | Southern New England Telephone Co. | |
| 203-445- | Landline | Trumbull | Southern New England Telephone Co. |
| 203-791- | Landline | Danbury | Southern New England Telephone Co. |
| 203-221- | Landline | Westport | Southern New England Telephone Co. |
| 203-788- | Wireless | Danbury | New Cingular Wireless PCS - DC |
| 203-622- | Landline | Greenwich | Verizon New York |
| 203-610- | Landline | Bridgeport | Conversent Communications Of Connecticut |
| 203-207- | Landline | Danbury | Southern New England Telephone Co. |
| 203-929- | Landline | Huntington | Southern New England Telephone Co. |
| 203-660- | Landline | Greenwich | Global Crossing Local Services-ct |
| 203-449- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-770- | Landline | Danbury | New Cingular Wireless PCS - DC |
| 203-826- | Landline | Danbury | Southern New England Telephone Co. |
| 203-662- | Landline | Darien | Southern New England Telephone Co. |
| 203-962- | Landline | Stamford | Southern New England Telephone Co. |
| 203-226- | Landline | Westport | Southern New England Telephone Co. |
| 203-925- | Landline | Huntington | Southern New England Telephone Co. |
| 203-637- | Landline | Old Greenwich | Southern New England Telephone Co. |
| 203-964- | Landline | Stamford | Southern New England Telephone Co. |
| 203-371- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-243- | Wireless | Bridgeport | Omnipoint Communications |
| 203-839- | Wireless | Norwalk | Usa Mobility Wireless |
| 203-353- | Landline | Stamford | Southern New England Telephone Co. |
| 203-584- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-765- | Landline | New Haven | Southern New England Telephone Co. |
| 203-931- | Landline | New Haven | Southern New England Telephone Co. |
| 203-846- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-368- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-348- | Landline | Stamford | Southern New England Telephone Co. |
| 203-969- | Landline | Stamford | Southern New England Telephone Co. |
| 203-328- | Landline | Stamford | Southern New England Telephone Co. |
| 203-676- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-693- | Landline | Milford | Cablevision Lightpath |
| 203-766- | Wireless | New Haven | American Messaging (am) |
| 203-463- | Landline | Seymour | Teleport Communications America |
| 203-809- | Wireless | New Haven | Omnipoint Communications |
| 203-821- | Landline | New Haven | Southern New England Telephone Co. |
| 203-242- | Landline | Huntington | Cablevision Lightpath |
| 203-697- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-495- | Landline | New Haven | Southern New England Telephone Co. |
| 203-302- | Landline | Greenwich | Teleport Communications Group - NY |
| 203-678- | Landline | Wallingford | Paetec Communications |
| 203-591- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-494- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-590- | Landline | Trumbull | Level 3 Communications |
| 203-276- | Landline | Stamford | Cablevision Lightpath |
| 203-733- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-581- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-303- | Landline | Wallingford | Teleport Communications America |
| 203-745- | Landline | New Haven | Sbc Internet Services |
| 203-429- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-507- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-273- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-690- | Wireless | Bridgeport | Omnipoint Communications |
| 203-375- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-919- | Wireless | Norwalk | Omnipoint Communications |
| 203-443- | Landline | Meriden | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-659- | Landline | Fairfield | Paetec Communications |
| 203-833- | Wireless | Norwalk | Usa Mobility Wireless |
| 203-539- | Landline | Stamford | Southern New England Telephone Co. |
| 203-978- | Landline | Stamford | Southern New England Telephone Co. |
| 203-531- | Landline | Greenwich | Verizon New York |
| 203-451- | Landline | Westport | New Cingular Wireless PCS - DC |
| 203-360- | Wireless | Bridgeport | Metro PCS |
| 203-570- | Wireless | Stamford | Omnipoint Communications |
| 203-926- | Landline | Huntington | Southern New England Telephone Co. |
| 203-834- | Landline | Wilton | Southern New England Telephone Co. |
| 203-644- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-755- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-979- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-718- | Landline | Cheshire | Global Crossing Local Services-ct |
| 203-271- | Landline | Cheshire | Southern New England Telephone Co. |
| 203-321- | Landline | Stamford | Southern New England Telephone Co. |
| 203-878- | Landline | Milford | Southern New England Telephone Co. |
| 203-464- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-485- | Landline | Greenwich | Cablevision Lightpath |
| 203-588- | Landline | Stamford | Cablevision Lightpath |
| 203-366- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-274- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-897- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-410- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-812- | Landline | New Haven | Southern New England Telephone Co. |
| 203-438- | Landline | Ridgefield | Southern New England Telephone Co. |
| 203-209- | Landline | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-699- | Landline | Cheshire | Southern New England Telephone Co. |
| 203-488- | Landline | Branford | Southern New England Telephone Co. |
| 203-576- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-269- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-374- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-896- | Landline | Madison | Global Crossing Local Services-ct |
| 203-356- | Landline | Stamford | Southern New England Telephone Co. |
| 203-372- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-802- | Wireless | Waterbury | Metro PCS |
| 203-845- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-936- | Landline | New Haven | Southern New England Telephone Co. |
| 203-220- | Landline | Trumbull | Cablevision Lightpath |
| 203-853- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-831- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-450- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-399- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-783- | Landline | Milford | Southern New England Telephone Co. |
| 203-255- | Landline | Fairfield | Southern New England Telephone Co. |
| 203-417- | Wireless | Danbury | New Cingular Wireless PCS - DC |
| 203-249- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-785- | Landline | New Haven | Southern New England Telephone Co. |
| 203-688- | Landline | New Haven | Southern New England Telephone Co. |
| 203-569- | Landline | Stamford | Cablevision Lightpath |
| 203-677- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-448- | Landline | Danbury | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-560- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-797- | Landline | Danbury | Southern New England Telephone Co. |
| 203-506- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-722- | Wireless | Norwalk | New Cingular Wireless PCS - DC |
| 203-673- | Landline | Bridgeport | AT&T Local |
| 203-222- | Landline | Westport | Southern New England Telephone Co. |
| 203-383- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-683- | Landline | Bridgeport | Paetec Communications |
| 203-238- | Landline | Meriden | Southern New England Telephone Co. |
| 203-548- | Landline | Stamford | Broadwing Communications |
| 203-794- | Landline | Danbury | Southern New England Telephone Co. |
| 203-735- | Landline | Ansonia | Southern New England Telephone Co. |
| 203-698- | Landline | Old Greenwich | Southern New England Telephone Co. |
| 203-318- | Landline | Madison | Southern New England Telephone Co. |
| 203-617- | Wireless | Danbury | Sprint Spectrum L.p. |
| 203-267- | Landline | Southbury | Southern New England Telephone Co. |
| 203-655- | Landline | Darien | Southern New England Telephone Co. |
| 203-291- | Landline | Westport | Southern New England Telephone Co. |
| 203-721- | Landline | Waterbury | AT&T Local |
| 203-370- | Wireless | New Haven | American Messaging (am) |
| 203-566- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-326- | Landline | Stamford | Southern New England Telephone Co. |
| 203-646- | Landline | Branford | Global Crossing Local Services-ct |
| 203-634- | Landline | Meriden | Southern New England Telephone Co. |
| 203-259- | Landline | Fairfield | Southern New England Telephone Co. |
| 203-649- | Landline | Cheshire | Paetec Communications |
| 203-910- | Wireless | Waterbury | Cellco Partnership DBA Verizon Wireless |
| 203-497- | Landline | New Haven | Southern New England Telephone Co. |
| 203-509- | Wireless | Waterbury | Sprint Spectrum L.p. |
| 203-603- | Landline | New Haven | Southern New England Telephone Co. |
| 203-355- | Landline | Stamford | Cablevision Lightpath |
| 203-943- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-387- | Landline | New Haven | Southern New England Telephone Co. |
| 203-684- | Wireless | New Haven | Metro PCS |
| 203-300- | Wireless | Danbury | Omnipoint Communications |
| 203-645- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-223- | Wireless | Stamford | Sprint Spectrum L.p. |
| 203-521- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-512- | Wireless | Danbury | Omnipoint Communications |
| 203-596- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-564- | Landline | Stamford | AT&T Local |
| 203-593- | Wireless | Norwalk | Usa Mobility Wireless |
| 203-900- | Landline | Greenwich | Cablevision Lightpath |
| 203-874- | Landline | Milford | Southern New England Telephone Co. |
| 203-343- | Wireless | Derby | New Cingular Wireless PCS - DC |
| 203-642- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-817- | Landline | Stamford | Cablevision Lightpath |
| 203-916- | Landline | Norwalk | Level 3 Communications |
| 203-986- | Landline | Old Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-473- | Unknown | Southern New England Telephone Co. | |
| 203-747- | Landline | New Haven | Teleport Communications America |
| 203-482- | Wireless | Danbury | New Cingular Wireless PCS - DC |
| 203-920- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-894- | Landline | Ridgefield | Southern New England Telephone Co. |
| 203-630- | Landline | Meriden | Southern New England Telephone Co. |
| 203-201- | Wireless | New Haven | Usa Mobility Wireless |
| 203-382- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-380- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-301- | Landline | Milford | Southern New England Telephone Co. |
| 203-621- | Landline | Darien | Paetec Communications |
| 203-263- | Landline | Woodbury | Southern New England Telephone Co. |
| 203-491- | Landline | Newtown | Bandwidth.com Clec |
| 203-773- | Landline | New Haven | Southern New England Telephone Co. |
| 203-908- | Wireless | Bridgeport | Omnipoint Communications |
| 203-643- | Landline | Branford | Choice One Communications |
| 203-800- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-573- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-807- | Wireless | Norwalk | New Cingular Wireless PCS - DC |
| 203-551- | Landline | Bridgeport | Teleport Communications America |
| 203-329- | Landline | Stamford | Southern New England Telephone Co. |
| 203-433- | Landline | Branford | Comcast Phone Of Connecticut |
| 203-346- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-873- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-510- | Wireless | Waterbury | Sprint Spectrum L.p. |
| 203-601- | Landline | Trumbull | Teleport Communications America |
| 203-561- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-466- | Landline | New Haven | Southern New England Telephone Co. |
| 203-816- | Landline | Trumbull | Global Crossing Local Services-ct |
| 203-716- | Landline | Stamford | Global Crossing Local Services-ct |
| 203-738- | Landline | Guilford | Choice One Communications |
| 203-871- | Landline | Branford | Teleport Communications America |
| 203-206- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-256- | Landline | Fairfield | Southern New England Telephone Co. |
| 203-421- | Landline | Madison | Southern New England Telephone Co. |
| 203-205- | Landline | Danbury | Southern New England Telephone Co. |
| 203-657- | Wireless | New Haven | American Messaging (am) |
| 203-903- | Landline | New Haven | Level 3 Communications |
| 203-729- | Landline | Naugatuck | Southern New England Telephone Co. |
| 203-540- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-324- | Landline | Stamford | Southern New England Telephone Co. |
| 203-468- | Landline | New Haven | Southern New England Telephone Co. |
| 203-942- | Landline | Danbury | Sprint Spectrum L.p. |
| 203-658- | Landline | Stamford | Teleport Communications America |
| 203-218- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-909- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-822- | Landline | Norwalk | AT&T Local |
| 203-629- | Landline | Greenwich | Verizon New York |
| 203-577- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-424- | Wireless | Danbury | Sprint Spectrum L.p. |
| 203-431- | Landline | Ridgefield | Southern New England Telephone Co. |
| 203-528- | Landline | Waterbury | Level 3 Communications |
| 203-772- | Landline | New Haven | Southern New England Telephone Co. |
| 203-254- | Landline | Fairfield | Southern New England Telephone Co. |
| 203-252- | Landline | Stamford | Cablevision Lightpath |
| 203-847- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-499- | Landline | New Haven | Southern New England Telephone Co. |
| 203-719- | Landline | Stamford | Southern New England Telephone Co. |
| 203-442- | Landline | New Canaan | Teleport Communications America |
| 203-781- | Landline | New Haven | Southern New England Telephone Co. |
| 203-439- | Landline | Cheshire | Cox Connecticut Telecom |
| 203-915- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-363- | Landline | Stamford | Southern New England Telephone Co. |
| 203-282- | Wireless | Stamford | Usa Mobility Wireless |
| 203-426- | Landline | Newtown | Southern New England Telephone Co. |
| 203-467- | Landline | New Haven | Southern New England Telephone Co. |
| 203-418- | Landline | Fairfield | Teleport Communications America |
| 203-515- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-339- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-661- | Landline | Greenwich | Verizon New York |
| 203-985- | Landline | New Haven | Southern New England Telephone Co. |
| 203-921- | Landline | Stamford | Southern New England Telephone Co. |
| 203-298- | Landline | New Haven | Cablevision Lightpath |
| 203-930- | Landline | Greenwich | Global Crossing Local Services-ct |
| 203-899- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-212- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-805- | Landline | Waterbury | Teleport Communications America |
| 203-562- | Landline | New Haven | Southern New England Telephone Co. |
| 203-968- | Landline | Stamford | Southern New England Telephone Co. |
| 203-786- | Landline | New Haven | Southern New England Telephone Co. |
| 203-394- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-599- | Landline | Meriden | AT&T Local |
| 203-530- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-708- | Landline | Stamford | Southern New England Telephone Co. |
| 203-679- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-523- | Landline | Norwalk | Teleport Communications America |
| 203-480- | Landline | Fairfield | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-365- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-414- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-563- | Landline | Wilton | Southern New England Telephone Co. |
| 203-295- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-484- | Landline | Northford | Southern New England Telephone Co. |
| 203-795- | Landline | New Haven | Southern New England Telephone Co. |
| 203-529- | Landline | Wilton | AT&T Local |
| 203-286- | Landline | Norwalk | Conversent Communications Of Connecticut |
| 203-682- | Landline | Stamford | Paetec Communications |
| 203-550- | Wireless | Stamford | Omnipoint Communications |
| 203-844- | Landline | Fairfield | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-364- | Landline | Newtown | Southern New England Telephone Co. |
| 203-810- | Landline | Norwalk | Cablevision Lightpath |
| 203-967- | Landline | Stamford | Southern New England Telephone Co. |
| 203-284- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-939- | Landline | Norwalk | Cablevision Lightpath |
| 203-681- | Landline | Greenwich | Verizon New York |
| 203-489- | Landline | Greenwich | Cablevision Lightpath |
| 203-292- | Landline | Fairfield | Cablevision Lightpath |
| 203-825- | Landline | Danbury | Southern New England Telephone Co. |
| 203-997- | Wireless | Derby | Omnipoint Communications |
| 203-470- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-843- | Landline | New Haven | AT&T Local |
| 203-379- | Landline | Meriden | Southern New England Telephone Co. |
| 203-850- | Wireless | New Haven | Metro PCS |
| 203-409- | Landline | Old Greenwich | Teleport Communications America |
| 203-231- | Wireless | Derby | Cellco Partnership DBA Verizon Wireless |
| 203-554- | Wireless | Stamford | New Cingular Wireless PCS - DC |
| 203-378- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-508- | Landline | New Haven | Ctc Communications Corp. |
| 203-752- | Landline | New Haven | Southern New England Telephone Co. |
| 203-337- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-309- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-514- | Landline | Meriden | Teleport Communications America |
| 203-598- | Landline | Waterbury | Southern New England Telephone Co. |
| 203-687- | Landline | New Haven | Level 3 Communications |
| 203-333- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-217- | Wireless | Waterbury | New Cingular Wireless PCS - DC |
| 203-636- | Landline | Darien | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-638- | Landline | Trumbull | Paetec Communications |
| 203-545- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-725- | Landline | Waterbury | Cox Connecticut Telecom |
| 203-928- | Landline | New Haven | Southern New England Telephone Co. |
| 203-692- | Landline | Fairfield | Global Crossing Local Services-ct |
| 203-320- | Landline | Darien | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-960- | Landline | Stamford | Cablevision Lightpath |
| 203-858- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-891- | Landline | New Haven | Southern New England Telephone Co. |
| 203-641- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-625- | Landline | Greenwich | Verizon New York |
| 203-867- | Landline | New Haven | Southern New England Telephone Co. |
| 203-789- | Landline | New Haven | Southern New England Telephone Co. |
| 203-280- | Landline | Darien | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-501- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-233- | Wireless | Waterbury | Cellco Partnership DBA Verizon Wireless |
| 203-268- | Landline | Trumbull | Southern New England Telephone Co. |
| 203-459- | Landline | Trumbull | Southern New England Telephone Co. |
| 203-257- | Wireless | Bridgeport | Cellco Partnership DBA Verizon Wireless |
| 203-922- | Landline | Huntington | Southern New England Telephone Co. |
| 203-240- | Wireless | Danbury | Cellco Partnership DBA Verizon Wireless |
| 203-870- | Landline | Bridgeport | Cablevision Lightpath |
| 203-534- | Wireless | Bridgeport | Southern New England Telephone Co. |
| 203-998- | Landline | Stamford | Level 3 Communications |
| 203-824- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-214- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-639- | Landline | Meriden | Southern New England Telephone Co. |
| 203-580- | Landline | Greenwich | Peerless Network Of Connecticut |
| 203-904- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-868- | Landline | New Haven | AT&T Local |
| 203-297- | Landline | Danbury | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-804- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-965- | Landline | Stamford | Southern New England Telephone Co. |
| 203-640- | Wireless | New Haven | New Cingular Wireless PCS - DC |
| 203-391- | Landline | Stamford | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-277- | Landline | Old Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-952- | Wireless | Norwalk | Sprint Spectrum L.p. |
| 203-827- | Landline | Old Greenwich | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-565- | Wireless | Waterbury | Sprint Spectrum L.p. |
| 203-668- | Wireless | New Haven | Sprint Spectrum L.p. |
| 203-938- | Landline | Redding | Southern New England Telephone Co. |
| 203-582- | Landline | New Haven | Southern New England Telephone Co. |
| 203-869- | Landline | Greenwich | Verizon New York |
| 203-287- | Landline | New Haven | Southern New England Telephone Co. |
| 203-956- | Landline | Norwalk | Cablevision Lightpath |
| 203-808- | Wireless | Waterbury | Omnipoint Communications |
| 203-294- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-837- | Landline | Danbury | Southern New England Telephone Co. |
| 203-535- | Landline | New Haven | Comcast Phone Of Connecticut |
| 203-907- | Landline | New Haven | Choice One Communications |
| 203-435- | Wireless | New Haven | Omnipoint Communications |
| 203-626- | Landline | New Haven | AT&T Local |
| 203-803- | Wireless | Norwalk | Cellco Partnership DBA Verizon Wireless |
| 203-632- | Landline | Naugatuck | Choice One Communications |
| 203-244- | Landline | Ridgefield | Cablevision Lightpath |
| 203-694- | Landline | Meriden | Southern New England Telephone Co. |
| 203-902- | Landline | New Haven | Global Naps |
| 203-937- | Landline | New Haven | Southern New England Telephone Co. |
| 203-265- | Landline | Wallingford | Southern New England Telephone Co. |
| 203-760- | Landline | Bridgeport | Peerless Network Of Connecticut |
| 203-864- | Wireless | Bridgeport | Sprint Spectrum L.p. |
| 203-892- | Wireless | Bridgeport | Omnipoint Communications |
| 203-879- | Landline | Wolcott | Southern New England Telephone Co. |
| 203-669- | Landline | Darien | Global Crossing Local Services-ct |
| 203-305- | Wireless | Derby | New Cingular Wireless PCS - DC |
| 203-556- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-455- | Landline | Bridgeport | Brooks Fiber Communications Of Connecticut Inc-ct |
| 203-376- | Wireless | New Haven | Cellco Partnership DBA Verizon Wireless |
| 203-768- | Wireless | Waterbury | Omnipoint Communications |
| 203-319- | Landline | Fairfield | Southern New England Telephone Co. |
| 203-571- | Landline | Westport | AT&T Local |
| 203-381- | Landline | Bridgeport | Southern New England Telephone Co. |
| 203-522- | Wireless | Bridgeport | New Cingular Wireless PCS - DC |
| 203-635- | Landline | Stamford | Level 3 Communications |
| 203-413- | Landline | Greenwich | Paetec Communications - NY |
| 203-947- | Wireless | Danbury | New Cingular Wireless PCS - DC |
| 203-471- | Unknown | Southern New England Telephone Co. | |
| 203-989- | Landline | Norwalk | Level 3 Communications |
| 203-780- | Wireless | Waterbury | Peerless Network Of Connecticut |
| 203-536- | Wireless | Stamford | Cellco Partnership DBA Verizon Wireless |
| 203-452- | Landline | Trumbull | Southern New England Telephone Co. |
| 203-315- | Landline | Branford | Southern New England Telephone Co. |
| 203-889- | Landline | New Haven | Global Crossing Local Services-ct |
| 203-819- | Landline | Waterbury | New Cingular Wireless PCS - DC |
| 203-876- | Landline | Milford | Southern New England Telephone Co. |
| 203-830- | Landline | Danbury | Southern New England Telephone Co. |
| 203-924- | Landline | Huntington | Southern New England Telephone Co. |
| 203-325- | Landline | Stamford | Southern New England Telephone Co. |
| 203-670- | Wireless | Waterbury | American Messaging (am) |
| 203-991- | Landline | Norwalk | Southern New England Telephone Co. |
| 203-782- | Landline | New Haven | Southern New England Telephone Co. |
| 203-872- | Landline | New Haven | AT&T Local |
| 203-901- | Wireless | New Haven | Sprint Spectrum L.p. |
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