There are 800 phone number prefixes within area code 203. Additionally, there are more than 2,000 phone numbers in this area code that have received at least one user report. The location of calls from area code 203 is Connecticut, USA. Most numbers in this area code are in US Eastern time, where the time is currently 11:47:05 PM on April 25, 2024.
Choose a phone number from the list below to browse user reports for . You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.
| Prefix | City / State | Primary Telco |
|---|---|---|
| 203-200 | New Haven, CT | Bandwidth.com Clec, Llc - Ct |
| 203-201 | New Haven, CT | Usa Mobility Wireless, Inc. |
| 203-202 | Darien, CT | Cablevision Lightpath, Inc. - Ct |
| 203-203 | Connecticut | |
| 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 |
| 203-211 | Connecticut | |
| 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 | Sprint Spectrum, L.p. |
| 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 | Cablevision Lightpath, Inc. - Ct |
| 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 | Usa Mobility Wireless, 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 | Usa Mobility Wireless, 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 | Conversent Communications Of Connecticut, Llc - Ct |
| 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 | Usa Mobility Wireless, 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 |
April 24, 2024