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Area Code 312 phone numbers

State: Illinois
In service since: 1947 Landlines: 532 Wireless prefixes: 240 Carriers: 44 Counties: 4 ZIP codes: 23 Major cities: Chicago, Willowbrook, Elgin, Arlington Heights, Naperville

Area Code 312 has 774 prefixes

PrefixCountyCityCarrier
1-312-200 CookChicagoMetro Pcs, Inc.
1-312-201 CookChicagoAmeritech Illinois
1-312-202 CookChicagoAmeritech Illinois
1-312-203 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-204 CookChicagoAmeritech Illinois
1-312-205 CookChicagoAllegiance Telecom, Inc. - Il
1-312-206 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-207 CookChicagoAmeritech Illinois
1-312-208 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-209 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-210
1-312-212 CookChicagoAmeritech Illinois
1-312-213 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-214 CookChicagoAmeritech Illinois
1-312-215 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-216 CookChicagoFirst Communications Llc - Il
1-312-217 CookArlington HeightsSprint Spectrum L.p.
1-312-218 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-219 CookChicagoBandwidth.com Clec, Llc - Il
1-312-220 CookChicagoAmeritech Illinois
1-312-221 CookArlington HeightsSprint Spectrum L.p.
1-312-222 CookChicagoAmeritech Illinois
1-312-223 CookChicagoAmeritech Illinois
1-312-224 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-225 CookChicagoAmeritech Illinois
1-312-226 CookChicagoAmeritech Illinois
1-312-227 CookChicagoAmeritech Illinois
1-312-228 CookChicagoAmeritech Illinois
1-312-229 CookChicagoAmeritech Illinois
1-312-230 CookChicagoAmeritech Illinois
1-312-231 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-232 CookChicagoAmerican Messaging Services, Llc
1-312-233 CookChicagoAmeritech Illinois
1-312-234 CookChicagoAmeritech Illinois
1-312-235 CookChicagoAmeritech Illinois
1-312-236 CookChicagoAmeritech Illinois
1-312-237 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-238 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-239 CookChicagoAt&t Local
1-312-240 CookChicagoAmeritech Illinois
1-312-241 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-242 CookChicagoTeleport Communications America, Llc - Il
1-312-243 CookChicagoAmeritech Illinois
1-312-244 CookChicagoAmeritech Illinois
1-312-245 CookChicagoAmeritech Illinois
1-312-246 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-247 CookChicagoFirst Communications Llc - Il
1-312-248 CookChicagoMetro Pcs, Inc.
1-312-249 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-250 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-251 CookChicagoAmeritech Illinois
1-312-252 CookChicagoAllegiance Telecom, Inc. - Il
1-312-253 CookChicagoAllegiance Telecom, Inc. - Il
1-312-254 CookChicagoAllegiance Telecom, Inc. - Il
1-312-255 CookChicagoAmeritech Illinois
1-312-256 CookChicagoAllegiance Telecom, Inc. - Il
1-312-257 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-258 CookChicagoAmeritech Illinois
1-312-259 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-260 DuPageBensenvilleMcimetro Access Transmission Services Llc
1-312-261 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-262 CookChicagoAllegiance Telecom, Inc. - Il
1-312-263 CookChicagoAmeritech Illinois
1-312-264 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-265 CookArlington HeightsAccess One, Inc. - Il
1-312-266 CookChicagoAmeritech Illinois
1-312-267 CookChicagoAmeritech Illinois
1-312-268 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-269 CookChicagoAmeritech Illinois
1-312-270 KaneElginMetro Pcs, Inc.
1-312-271 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-272 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-273 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-274 CookChicagoAmeritech Illinois
1-312-275 CookChicagoAllegiance Telecom, Inc. - Il
1-312-276 CookChicagoAllegiance Telecom, Inc. - Il
1-312-277 CookChicagoAllegiance Telecom, Inc. - Il
1-312-278 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-279 DuPageBensenvilleMcimetro Access Transmission Services Llc
1-312-280 CookChicagoAmeritech Illinois
1-312-281 CookChicagoGlobal Crossing Local Services, Inc.-il
1-312-282 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-283 CookChicagoGlobal Crossing Local Services, Inc.-il
1-312-284 CookChicagoXo Illinois, Inc.
1-312-285 CookArlington HeightsSprint Spectrum L.p.
1-312-286 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-287 CookArlington HeightsSprint Spectrum L.p.
1-312-288 DuPageBensenvilleMcimetro Access Transmission Services Llc
1-312-289 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-290 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-291 CookChicagoAmeritech Illinois
1-312-292 CookChicagoBandwidth.com Clec, Llc - Il
1-312-293 CookChicagoAmeritech Illinois
1-312-294 CookChicagoAmeritech Illinois
1-312-295 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-296 CookArlington HeightsSprint Spectrum L.p.
1-312-297 CookChicagoAmeritech Illinois
1-312-298 CookChicagoSigecom, Llc Dba Wow Internet Cable And Phone
1-312-299 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-300 CookChicagoNet Talk.com, Inc. - Il
1-312-301 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-302 CookChicagoAmeritech Illinois
1-312-303 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-304 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-305 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-306 CookChicagoAmeritech Illinois
1-312-307 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-308 CookChicagoAmeritech Illinois
1-312-309 CookChicagoAmeritech Illinois
1-312-310 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-312
1-312-313 CookChicagoNeutral Tandem-illinois, Llc
1-312-314 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-315 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-316 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-317 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-318 CookHickory HillsCellco Partnership Dba Verizon Wireless - Il
1-312-319 CookChicagoMcimetro Access Transmission Services Llc
1-312-320 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-321 CookChicagoAmeritech Illinois
1-312-322 CookChicagoAmeritech Illinois
1-312-323 CookChicagoAmerican Messaging Services, Llc
1-312-324 CookChicagoLevel 3 Communications, Llc - Il
1-312-325 CookChicagoAmeritech Illinois
1-312-326 CookChicagoAmeritech Illinois
1-312-327 CookChicagoXo Illinois, Inc.
1-312-328 CookChicagoAmeritech Illinois
1-312-329 CookChicagoAmeritech Illinois
1-312-330 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-331 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-332 CookChicagoAmeritech Illinois
1-312-333 CookChicagoAmerican Messaging Services, Llc
1-312-334 CookChicagoFirst Communications Llc - Il
1-312-335 CookChicagoAmeritech Illinois
1-312-336 CookChicagoAmeritech Illinois
1-312-337 CookChicagoAmeritech Illinois
1-312-338 CookChicagoAmeritech Illinois
1-312-339 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-340 DuPageWillowbrookT-mobile Usa, Inc.
1-312-341 CookChicagoAmeritech Illinois
1-312-342 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-343 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-344 CookChicagoAmeritech Illinois
1-312-345 CookChicagoAmeritech Illinois
1-312-346 CookChicagoAmeritech Illinois
1-312-347 CookChicagoAmeritech Illinois
1-312-348 CookElk Grove VillageNeutral Tandem-illinois, Llc - Il
1-312-349 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-350 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-351 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-352 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-353 CookChicagoAmeritech Illinois
1-312-354 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-355 CookChicagoAmeritech Illinois
1-312-356 CookChicagoAmeritech Illinois
1-312-357 CookChicagoAmeritech Illinois
1-312-358 CookChicagoT-mobile Usa, Inc.
1-312-359 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-360 CookChicagoAmeritech Illinois
1-312-361 CookChicagoAmeritech Illinois
1-312-362 CookChicagoAmeritech Illinois
1-312-363 CookChicagoRcn Telecom Services Of Illinois, Inc. - Il
1-312-364 CookChicagoAmeritech Illinois
1-312-365 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-366 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-367 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-368 CookChicagoAmeritech Illinois
1-312-369 CookChicagoNew Cingular Wireless Pcs, Llc - Il
1-312-370 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-371 CookArlington HeightsSprint Spectrum L.p.
1-312-372 CookChicagoAmeritech Illinois
1-312-373 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-374 CookChicagoAmeritech Illinois
1-312-375 CookChicagoT-mobile Usa, Inc.
1-312-376 CookChicagoCbeyond Communications, Llc - Il
1-312-377 CookChicagoXo Illinois, Inc.
1-312-378 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-379 CookChicagoOvation Communications Of Illinois, Inc.
1-312-380 CookChicagoAmeritech Illinois
1-312-381 CookChicagoAmeritech Illinois
1-312-382 CookChicagoAmeritech Illinois
1-312-383 CookChicagoTeleport Communications America, Llc - Il
1-312-384 CookChicagoAmeritech Illinois
1-312-385 CookChicagoAmeritech Illinois
1-312-386 CookChicagoAmeritech Illinois
1-312-387 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-388 CookArlington HeightsSprint Spectrum L.p.
1-312-389 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-390 CookChicagoAmerican Messaging Services, Llc
1-312-391 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-392 CookChicagoBroadvox-clec, Llc - Il
1-312-393 CookChicagoAmerican Messaging Services, Llc
1-312-394 CookChicagoAmeritech Illinois
1-312-395 CookChicagoAt&t Local
1-312-396 CookChicagoAmeritech Illinois
1-312-397 CookChicagoAmeritech Illinois
1-312-398 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-399 CookArlington HeightsSprint Spectrum L.p.
1-312-400 CookChicagoAmerican Messaging Services, Llc
1-312-401 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-402 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-403 CookHickory HillsCellco Partnership Dba Verizon Wireless - Il
1-312-404 CookChicagoT-mobile Usa, Inc.
1-312-405 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-406 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-407 CookChicagoAmeritech Illinois
1-312-408 CookChicagoAmeritech Illinois
1-312-409 CookChicagoAmeritech Illinois
1-312-410 CookChicagoAmeritech Illinois
1-312-412 CookSchaumburgNew Cingular Wireless Pcs, Llc - Il
1-312-413 CookChicagoAmeritech Illinois
1-312-414 CookChicagoVonage Network Inc.
1-312-415 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-416 CookElk Grove VillageMci Worldcom Communications, Inc. - Il
1-312-417 CookChicagoAmeritech Illinois
1-312-418 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-419 CookChicagoAmeritech Illinois
1-312-420 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-421 CookChicagoAmeritech Illinois
1-312-422 CookChicagoAmeritech Illinois
1-312-423 CookArlington HeightsBroadwing Communications, Llc - Il
1-312-424 CookChicagoAmeritech Illinois
1-312-425 CookChicagoAmeritech Illinois
1-312-426 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-427 CookChicagoAmeritech Illinois
1-312-428 DuPageOak BrookLevel 3 Communications, Llc - Il
1-312-429 CookChicagoGlobal Crossing Local Services, Inc.-il
1-312-430 CookChicagoAmeritech Illinois
1-312-431 CookChicagoAmeritech Illinois
1-312-432 CookChicagoAmeritech Illinois
1-312-433 CookChicagoAmeritech Illinois
1-312-434 CookArlington HeightsSprint Spectrum L.p.
1-312-435 CookChicagoAmeritech Illinois
1-312-436 CookChicagoAmeritech Illinois
1-312-437 CookArlington HeightsSprint Spectrum L.p.
1-312-438 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-439 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-440 CookChicagoAmeritech Illinois
1-312-441 CookChicagoAmeritech Illinois
1-312-442 CookChicagoAmeritech Illinois
1-312-443 CookChicagoAmeritech Illinois
1-312-444 CookChicagoAmeritech Illinois
1-312-445 CookChicagoAmeritech Illinois
1-312-446 CookArlington HeightsSprint Spectrum L.p.
1-312-447 CookChicagoAmeritech Illinois
1-312-448 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-449 CookChicagoAmerican Messaging Services, Llc
1-312-450 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-451 CookChicagoT-mobile Usa, Inc.
1-312-452 CookChicagoAmerican Messaging Services, Llc
1-312-453 CookElk Grove VillageMci Worldcom Communications, Inc. - Il
1-312-454 CookChicagoAmeritech Illinois
1-312-455 CookChicagoAmeritech Illinois
1-312-456 CookChicagoAmeritech Illinois
1-312-457 CookChicagoAmerican Messaging Services, Llc
1-312-458 CookChicagoAmeritech Illinois
1-312-459 CookChicagoT-mobile Usa, Inc.
1-312-460 CookChicagoAmeritech Illinois
1-312-461 CookChicagoAmeritech Illinois
1-312-462 CookChicagoAmeritech Illinois
1-312-463 CookChicagoAmeritech Illinois
1-312-464 CookChicagoAmeritech Illinois
1-312-465 KaneElginUs Xchange Of Illinois Llc Dba Choice One Comm Il
1-312-466 CookChicagoAmeritech Illinois
1-312-467 CookChicagoAmeritech Illinois
1-312-468 CookChicagoT-mobile Usa, Inc.
1-312-469 CookChicagoAmeritech Illinois
1-312-470 DuPageBensenvilleMcimetro Access Transmission Services Llc
1-312-471 DuPageBensenvilleMcimetro Access Transmission Services Llc
1-312-472 CookChicagoAmeritech Illinois
1-312-473 DuPageOak BrookYmax Communications Corp. - Il
1-312-474 CookChicagoAmeritech Illinois
1-312-475 CookChicagoAmeritech Illinois
1-312-476 CookArlington HeightsSprint Spectrum L.p.
1-312-477 CookChicagoLevel 3 Communications, Llc - Il
1-312-478 CookChicagoT-mobile Usa, Inc.
1-312-479 CookChicagoAt&t Local
1-312-480 DuPageWillowbrookNew Cingular Wireless Pcs, Llc - Il
1-312-481 CookChicagoMetro Pcs, Inc.
1-312-482 CookChicagoAmeritech Illinois
1-312-483 CookChicagoT-mobile Usa, Inc.
1-312-484 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-485 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-486 CookElk Grove VillageMci Worldcom Communications, Inc. - Il
1-312-487 CookChicagoMetro Pcs, Inc.
1-312-488 CookChicagoPg Telecom Of Illinois Inc. - Il
1-312-489 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-490 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-491 CookChicagoAmeritech Illinois
1-312-492 CookChicagoAmeritech Illinois
1-312-493 CookChicagoT-mobile Usa, Inc.
1-312-494 CookChicagoAmeritech Illinois
1-312-495 DuPageNapervilleUsa Mobility Wireless, Inc.
1-312-496 CookChicagoAmeritech Illinois
1-312-497 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-498 CookArlington HeightsSprint Spectrum L.p.
1-312-499 CookChicagoAmeritech Illinois
1-312-501 CookHickory HillsCellco Partnership Dba Verizon Wireless - Il
1-312-502 KaneElginCellco Partnership Dba Verizon Wireless - Il
1-312-503 CookArlington HeightsBroadwing Communications, Llc - Il