Area Code 331 — IL
Area code 331 serves IL (C time zone) with 222 assigned prefixes. Received a call from a 331 number? Type the full number into the search box above to see its city, carrier, and community reports.
Prefixes in area code 331
| Prefix | City | State | Carrier |
|---|---|---|---|
| 331-200 | Bartlett | IL | T-MOBILE USA, INC. |
| 331-201 | Downers Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-202 | Elmhurst | IL | T-MOBILE USA, INC. |
| 331-203 | Aurora | IL | T-MOBILE USA, INC. |
| 331-204 | Naperville | IL | ONVOY, LLC |
| 331-205 | Aurora | IL | T-MOBILE USA, INC. |
| 331-206 | Aurora | IL | T-MOBILE USA, INC. |
| 331-207 | Yorkville | IL | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 331-208 | Aurora | IL | T-MOBILE USA, INC. |
| 331-209 | Elmhurst | IL | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 331-210 | Geneva | IL | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 331-212 | Aurora | IL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
| 331-213 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-214 | Downers Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-215 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-216 | Oswego | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-217 | Lombard | IL | ONVOY, LLC |
| 331-218 | Wheaton | IL | T-MOBILE USA, INC. |
| 331-219 | Aurora | IL | TELNYX LLC |
| 331-220 | Aurora | IL | T-MOBILE USA, INC. |
| 331-221 | Elmhurst | IL | ILLINOIS BELL TEL CO |
| 331-222 | Geneva | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-223 | Geneva | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-224 | Bensenville | IL | ONVOY, LLC |
| 331-225 | Elmhurst | IL | T-MOBILE USA, INC. |
| 331-226 | Naperville | IL | T-MOBILE USA, INC. |
| 331-227 | Sugar Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-228 | Geneva | IL | PAETEC ITEL, LLC |
| 331-229 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-230 | Aurora | IL | T-MOBILE USA, INC. |
| 331-231 | Naperville | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-232 | West Chicago | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-233 | Downers Grove | IL | TELNYX LLC |
| 331-234 | Sugar Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-235 | Geneva | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-236 | Wheaton | IL | T-MOBILE USA, INC. |
| 331-237 | Naperville | IL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
| 331-238 | Downers Grove | IL | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 331-239 | Yorkville | IL | ONVOY, LLC |
| 331-240 | West Chicago | IL | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 331-241 | Lombard | IL | ONVOY, LLC |
| 331-242 | Lombard | IL | T-MOBILE USA, INC. |
| 331-243 | Lombard | IL | T-MOBILE USA, INC. |
| 331-244 | Naperville | IL | ONVOY, LLC |
| 331-245 | Bartlett | IL | T-MOBILE USA, INC. |
| 331-246 | Lemont | IL | T-MOBILE USA, INC. |
| 331-247 | Naperville | IL | VONAGE AMERICA LLC |
| 331-248 | Geneva | IL | COMCAST IP PHONE, LLC |
| 331-249 | Naperville | IL | ONVOY, LLC |
| 331-250 | Aurora | IL | T-MOBILE USA, INC. |
| 331-251 | Downers Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-252 | Warrenville | IL | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 331-253 | Lemont | IL | T-MOBILE USA, INC. |
| 331-254 | Sugar Grove | IL | T-MOBILE USA, INC. |
| 331-255 | Aurora | IL | ONVOY, LLC |
| 331-256 | Aurora | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-257 | Aurora | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-258 | Aurora | IL | ONVOY, LLC |
| 331-259 | Sugar Grove | IL | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 331-260 | Downers Grove | IL | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 331-261 | Lemont | IL | T-MOBILE USA, INC. |
| 331-262 | Aurora | IL | T-MOBILE USA, INC. |
| 331-263 | Bensenville | IL | ONVOY, LLC |
| 331-264 | Hinsdale | IL | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 331-265 | Geneva | IL | ONVOY, LLC |
| 331-266 | Geneva | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-267 | Lombard | IL | VONAGE AMERICA LLC |
| 331-268 | Sugar Grove | IL | T-MOBILE USA, INC. |
| 331-269 | Aurora | IL | T-MOBILE USA, INC. |
| 331-270 | Aurora | IL | ONVOY, LLC |
| 331-271 | Hinsdale | IL | ONVOY, LLC |
| 331-272 | Geneva | IL | ONVOY, LLC |
| 331-273 | Lemont | IL | ONVOY, LLC |
| 331-274 | Aurora | IL | T-MOBILE USA, INC. |
| 331-275 | Bartlett | IL | T-MOBILE USA, INC. |
| 331-276 | Geneva | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-277 | Lombard | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-278 | Aurora | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-279 | Elmhurst | IL | PAETEC ITEL, LLC |
| 331-280 | Downers Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-281 | Naperville | IL | ILLINOIS BELL TEL CO |
| 331-282 | Hinsdale | IL | ONVOY, LLC |
| 331-283 | Geneva | IL | T-MOBILE USA, INC. |
| 331-284 | Bartlett | IL | T-MOBILE USA, INC. |
| 331-285 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-286 | Geneva | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-287 | Aurora | IL | BANDWIDTH.COM CLEC, LLC - IL |
| 331-288 | Elburn | IL | TON80 COMMUNICATIONS, LLC |
| 331-289 | Hinsdale | IL | T-MOBILE USA, INC. |
| 331-290 | Aurora | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-291 | Downers Grove | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-292 | Downers Grove | IL | ONVOY SPECTRUM, LLC |
| 331-293 | Aurora | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-294 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-295 | Aurora | IL | NUSO, LLC |
| 331-296 | Wheaton | IL | BOOST SUBSCRIBERCO L.L.C. |
| 331-297 | Geneva | IL | ONVOY, LLC |
| 331-298 | Naperville | IL | ONVOY, LLC |
| 331-299 | Hinsdale | IL | FRACTEL, LLC |
| 331-300 | Aurora | IL | T-MOBILE USA, INC. |
| 331-301 | Aurora | IL | METROPCS, INC. |
| 331-302 | Aurora | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-303 | Elburn | IL | BANDWIDTH.COM CLEC, LLC - IL |
| 331-304 | Bartlett | IL | T-MOBILE USA, INC. |
| 331-305 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-306 | Downers Grove | IL | ONVOY, LLC |
| 331-307 | Lombard | IL | T-MOBILE USA, INC. |
| 331-308 | Bartlett | IL | BANDWIDTH.COM CLEC, LLC - IL |
| 331-309 | Lemont | IL | COMMIO, LLC |
| 331-310 | Big Rock | IL | BANDWIDTH.COM CLEC, LLC - IL |
| 331-312 | Aurora | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-313 | Naperville | IL | ONVOY SPECTRUM, LLC |
| 331-314 | Geneva | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-315 | Lombard | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-316 | Naperville | IL | COMMIO, LLC |
| 331-317 | Hinsdale | IL | COMMIO, LLC |
| 331-318 | Lemont | IL | BANDWIDTH.COM CLEC, LLC - IL |
| 331-319 | Aurora | IL | ONVOY, LLC |
| 331-320 | Bartlett | IL | ONVOY, LLC |
| 331-321 | Aurora | IL | T-MOBILE USA, INC. |
| 331-322 | Lombard | IL | ONVOY, LLC |
| 331-323 | Glen Ellyn | IL | ONVOY, LLC |
| 331-324 | Yorkville | IL | ONVOY, LLC |
| 331-325 | Lemont | IL | ONVOY SPECTRUM, LLC |
| 331-326 | Downers Grove | IL | ONVOY, LLC |
| 331-327 | Geneva | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-328 | Naperville | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-329 | Aurora | IL | ONVOY, LLC |
| 331-330 | Naperville | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-331 | Aurora | IL | ONVOY, LLC |
| 331-332 | Naperville | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-333 | Naperville | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-334 | Geneva | IL | ONVOY, LLC |
| 331-335 | Geneva | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-336 | Aurora | IL | FRACTEL, LLC |
| 331-337 | Oswego | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-338 | Aurora | IL | ONVOY SPECTRUM, LLC |
| 331-339 | Aurora | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-340 | Bensenville | IL | ONVOY, LLC |
| 331-341 | Plano | IL | ONVOY, LLC |
| 331-342 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-343 | Downers Grove | IL | ONVOY, LLC |
| 331-344 | West Chicago | IL | ONVOY, LLC |
| 331-345 | Naperville | IL | FRACTEL, LLC |
| 331-346 | Naperville | IL | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 331-348 | Elburn | IL | FRACTEL, LLC |
| 331-356 | Bartlett | IL | FRACTEL, LLC |
| 331-373 | Oswego | IL | TON80 COMMUNICATIONS, LLC |
| 331-385 | Aurora | IL | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 331-388 | Sugar Grove | IL | FRACTEL, LLC |
Pages: 12
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