Area Code 203 - Connecticut
Every 203 prefix with its city and carrier. Got a specific number? Search it here.
Area code 203 serves Connecticut (Eastern time zone) with 778 assigned prefixes. Major rate centers include New Haven, Stamford, Bridgeport, Norwalk, Danbury, Waterbury, Greenwich, Meriden. Received a call from a 203 number? Type the full number into the search box above to see its city, carrier, and community reports.
Prefixes in area code 203
| Prefix | City | State | Carrier |
|---|---|---|---|
| 203-200 | New Haven | CT | BANDWIDTH.COM CLEC, LLC - CT |
| 203-201 | New Haven | CT | SPOK, INC. |
| 203-202 | Darien | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-203 | Greenwich | CT | ONVOY, LLC - CT |
| 203-204 | Guilford | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-205 | Danbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-206 | Waterbury | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-207 | Danbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-208 | Branford | CT | COMCAST IP PHONE, LLC |
| 203-209 | Bridgeport | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-210 | Wilton | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-212 | Bridgeport | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-213 | Meriden | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-214 | New Haven | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-215 | New Haven | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-216 | Westport | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-217 | Waterbury | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-218 | Bridgeport | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-219 | Stamford | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-220 | Trumbull | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-221 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-222 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-223 | Stamford | CT | OMNIPOINT COMMUNICATIONS, INC. - CT |
| 203-224 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-225 | Huntington | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-226 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-227 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-228 | Waterbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-229 | Norwalk | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-230 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-231 | Ansonia-Derby | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-232 | Waterbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-233 | Waterbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-234 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-235 | Meriden | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-236 | Waterbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-237 | Meriden | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-238 | Meriden | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-239 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-240 | Danbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-241 | Danbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-242 | Huntington | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-243 | Bridgeport | CT | OMNIPOINT COMMUNICATIONS, INC. - CT |
| 203-244 | Ridgefield | CT | CSC VOICE, LLC |
| 203-245 | Madison | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-246 | Norwalk | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-247 | Norwalk | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-248 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-249 | Stamford | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-250 | Cheshire | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-251 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-252 | Stamford | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-253 | Stamford | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-254 | Fairfield | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-255 | Fairfield | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-256 | Fairfield | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-257 | Bridgeport | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-258 | Bridgeport | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-259 | Fairfield | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-260 | Bridgeport | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-261 | Trumbull | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-262 | Woodbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-263 | Woodbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-264 | Woodbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-265 | Wallingford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-266 | Woodbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-267 | Woodbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-268 | Trumbull | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-269 | Wallingford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-270 | Newtown | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-271 | Cheshire | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-272 | Cheshire | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-273 | Stamford | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-274 | Stamford | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-275 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-276 | Stamford | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-277 | Old Greenwich | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-278 | Ansonia-Derby | CT | OMNIPOINT COMMUNICATIONS, INC. - CT |
| 203-279 | Bridgeport | CT | SPOK, INC. |
| 203-280 | Darien | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-281 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-282 | Stamford | CT | SPOK, INC. |
| 203-283 | Milford | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-284 | Wallingford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-285 | New Haven | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-286 | Norwalk | CT | PAETEC ITEL, LLC |
| 203-287 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-288 | New Haven | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-289 | Danbury | CT | SPOK, INC. |
| 203-290 | Bridgeport | CT | OMNIPOINT COMMUNICATIONS, INC. - CT |
| 203-291 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-292 | Fairfield | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-293 | Westport | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-294 | Wallingford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-295 | Norwalk | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-296 | Bridgeport | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-297 | Danbury | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-298 | New Haven | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-299 | Norwalk | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-300 | Danbury | CT | OMNIPOINT COMMUNICATIONS, INC. - CT |
| 203-301 | Milford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-302 | Greenwich | CT | TC SYSTEMS, INC. - NY |
| 203-303 | Wallingford | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-304 | Newtown | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-305 | Ansonia-Derby | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-306 | Milford | CT | PAETEC ITEL, LLC |
| 203-307 | Fairfield | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-308 | Ansonia-Derby | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-309 | Darien | CT | METROPCS, INC. |
| 203-310 | New Canaan | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-312 | Danbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-313 | Danbury | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-314 | New Haven | CT | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
| 203-315 | Branford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-316 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-317 | Meriden | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-318 | Madison | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-319 | Fairfield | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-320 | Darien | CT | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT |
| 203-321 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-322 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-323 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-324 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-325 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-326 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-327 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-328 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-329 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-330 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-331 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-332 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-333 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-334 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-335 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-336 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-337 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-338 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-339 | Bridgeport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-340 | Greenwich | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-341 | Westport | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-342 | Bridgeport | CT | SPOK, INC. |
| 203-343 | Ansonia-Derby | CT | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 203-344 | Old Greenwich | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-345 | Bridgeport | CT | CABLEVISION LIGHTPATH, INC. - CT |
| 203-346 | Waterbury | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-347 | Byram | CT | LEVEL 3 COMMUNICATIONS, LLC - CT |
| 203-348 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
| 203-349 | Westport | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-350 | Madison | CT | TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
| 203-351 | Stamford | CT | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
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