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Area Code 312 phone numbers

State: Illinois
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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 789 prefixes

PrefixCountyCityCarrier
1-312-200 Cook Chicago Metro Pcs, Inc.
1-312-201 Cook Chicago Ameritech Illinois
1-312-202 Cook Chicago Ameritech Illinois
1-312-203 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-204 Cook Chicago Ameritech Illinois
1-312-205 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-206 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-207 Cook Chicago Ameritech Illinois
1-312-208 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-209 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-210
1-312-212 Cook Chicago Ameritech Illinois
1-312-213 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-214 Cook Chicago Ameritech Illinois
1-312-215 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-216 Cook Chicago First Communications Llc - Il
1-312-217 Cook Arlington Heights Sprint Spectrum L.p.
1-312-218 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-219 Cook Chicago Bandwidth.com Clec, Llc - Il
1-312-220 Cook Chicago Ameritech Illinois
1-312-221 Cook Arlington Heights Sprint Spectrum L.p.
1-312-222 Cook Chicago Ameritech Illinois
1-312-223 Cook Chicago Ameritech Illinois
1-312-224 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-225 Cook Chicago Ameritech Illinois
1-312-226 Cook Chicago Ameritech Illinois
1-312-227 Cook Chicago Ameritech Illinois
1-312-228 Cook Chicago Ameritech Illinois
1-312-229 Cook Chicago Ameritech Illinois
1-312-230 Cook Chicago Ameritech Illinois
1-312-231 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-232 Cook Chicago American Messaging Services, Llc
1-312-233 Cook Chicago Ameritech Illinois
1-312-234 Cook Chicago Ameritech Illinois
1-312-235 Cook Chicago Ameritech Illinois
1-312-236 Cook Chicago Ameritech Illinois
1-312-237 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-238 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-239 Cook Chicago At&t Local
1-312-240 Cook Chicago Ameritech Illinois
1-312-241 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-242 Cook Chicago Teleport Communications America, Llc - Il
1-312-243 Cook Chicago Ameritech Illinois
1-312-244 Cook Chicago Ameritech Illinois
1-312-245 Cook Chicago Ameritech Illinois
1-312-246 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-247 Cook Chicago First Communications Llc - Il
1-312-248 Cook Chicago Metro Pcs, Inc.
1-312-249 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-250 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-251 Cook Chicago Ameritech Illinois
1-312-252 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-253 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-254 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-255 Cook Chicago Ameritech Illinois
1-312-256 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-257 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-258 Cook Chicago Ameritech Illinois
1-312-259 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-260 DuPage Bensenville Mcimetro Access Transmission Services Llc
1-312-261 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-262 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-263 Cook Chicago Ameritech Illinois
1-312-264 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-265 Cook Arlington Heights Access One, Inc. - Il
1-312-266 Cook Chicago Ameritech Illinois
1-312-267 Cook Chicago Ameritech Illinois
1-312-268 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-269 Cook Chicago Ameritech Illinois
1-312-270 Kane Elgin Metro Pcs, Inc.
1-312-271 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-272 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-273 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-274 Cook Chicago Ameritech Illinois
1-312-275 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-276 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-277 Cook Chicago Allegiance Telecom, Inc. - Il
1-312-278 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-279 DuPage Bensenville Mcimetro Access Transmission Services Llc
1-312-280 Cook Chicago Ameritech Illinois
1-312-281 Cook Chicago Global Crossing Local Services, Inc.-il
1-312-282 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-283 Cook Chicago Global Crossing Local Services, Inc.-il
1-312-284 Cook Chicago Xo Illinois, Inc.
1-312-285 Cook Arlington Heights Sprint Spectrum L.p.
1-312-286 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-287 Cook Arlington Heights Sprint Spectrum L.p.
1-312-288 DuPage Bensenville Mcimetro Access Transmission Services Llc
1-312-289 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-290 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-291 Cook Chicago Ameritech Illinois
1-312-292 Cook Chicago Bandwidth.com Clec, Llc - Il
1-312-293 Cook Chicago Ameritech Illinois
1-312-294 Cook Chicago Ameritech Illinois
1-312-295 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-296 Cook Arlington Heights Sprint Spectrum L.p.
1-312-297 Cook Chicago Ameritech Illinois
1-312-298 Cook Chicago Sigecom, Llc Dba Wow Internet Cable And Phone
1-312-299 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-300 Cook Chicago Net Talk.com, Inc. - Il
1-312-301 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-302 Cook Chicago Ameritech Illinois
1-312-303 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-304 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-305 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-306 Cook Chicago Ameritech Illinois
1-312-307 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-308 Cook Chicago Ameritech Illinois
1-312-309 Cook Chicago Ameritech Illinois
1-312-310 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-312
1-312-313 Cook Chicago Neutral Tandem-illinois, Llc
1-312-314 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-315 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-316 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-317 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-318 Cook Hickory Hills Cellco Partnership Dba Verizon Wireless - Il
1-312-319 Cook Chicago Mcimetro Access Transmission Services Llc
1-312-320 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-321 Cook Chicago Ameritech Illinois
1-312-322 Cook Chicago Ameritech Illinois
1-312-323 Cook Chicago American Messaging Services, Llc
1-312-324 Cook Chicago Level 3 Communications, Llc - Il
1-312-325 Cook Chicago Ameritech Illinois
1-312-326 Cook Chicago Ameritech Illinois
1-312-327 Cook Chicago Xo Illinois, Inc.
1-312-328 Cook Chicago Ameritech Illinois
1-312-329 Cook Chicago Ameritech Illinois
1-312-330 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-331 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-332 Cook Chicago Ameritech Illinois
1-312-333 Cook Chicago American Messaging Services, Llc
1-312-334 Cook Chicago First Communications Llc - Il
1-312-335 Cook Chicago Ameritech Illinois
1-312-336 Cook Chicago Ameritech Illinois
1-312-337 Cook Chicago Ameritech Illinois
1-312-338 Cook Chicago Ameritech Illinois
1-312-339 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-340 DuPage Willowbrook T-mobile Usa, Inc.
1-312-341 Cook Chicago Ameritech Illinois
1-312-342 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-343 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-344 Cook Chicago Ameritech Illinois
1-312-345 Cook Chicago Ameritech Illinois
1-312-346 Cook Chicago Ameritech Illinois
1-312-347 Cook Chicago Ameritech Illinois
1-312-348 Cook Elk Grove Village Neutral Tandem-illinois, Llc - Il
1-312-349 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-350 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-351 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-352 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-353 Cook Chicago Ameritech Illinois
1-312-354 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-355 Cook Chicago Ameritech Illinois
1-312-356 Cook Chicago Ameritech Illinois
1-312-357 Cook Chicago Ameritech Illinois
1-312-358 Cook Chicago T-mobile Usa, Inc.
1-312-359 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-360 Cook Chicago Ameritech Illinois
1-312-361 Cook Chicago Ameritech Illinois
1-312-362 Cook Chicago Ameritech Illinois
1-312-363 Cook Chicago Rcn Telecom Services Of Illinois, Inc. - Il
1-312-364 Cook Chicago Ameritech Illinois
1-312-365 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-366 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-367 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-368 Cook Chicago Ameritech Illinois
1-312-369 Cook Chicago New Cingular Wireless Pcs, Llc - Il
1-312-370 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-371 Cook Arlington Heights Sprint Spectrum L.p.
1-312-372 Cook Chicago Ameritech Illinois
1-312-373 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-374 Cook Chicago Ameritech Illinois
1-312-375 Cook Chicago T-mobile Usa, Inc.
1-312-376 Cook Chicago Cbeyond Communications, Llc - Il
1-312-377 Cook Chicago Xo Illinois, Inc.
1-312-378 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-379 Cook Chicago Ovation Communications Of Illinois, Inc.
1-312-380 Cook Chicago Ameritech Illinois
1-312-381 Cook Chicago Ameritech Illinois
1-312-382 Cook Chicago Ameritech Illinois
1-312-383 Cook Chicago Teleport Communications America, Llc - Il
1-312-384 Cook Chicago Ameritech Illinois
1-312-385 Cook Chicago Ameritech Illinois
1-312-386 Cook Chicago Ameritech Illinois
1-312-387 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-388 Cook Arlington Heights Sprint Spectrum L.p.
1-312-389 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-390 Cook Chicago American Messaging Services, Llc
1-312-391 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-392 Cook Chicago Broadvox-clec, Llc - Il
1-312-393 Cook Chicago American Messaging Services, Llc
1-312-394 Cook Chicago Ameritech Illinois
1-312-395 Cook Chicago At&t Local
1-312-396 Cook Chicago Ameritech Illinois
1-312-397 Cook Chicago Ameritech Illinois
1-312-398 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-399 Cook Arlington Heights Sprint Spectrum L.p.
1-312-400 Cook Chicago American Messaging Services, Llc
1-312-401 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-402 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-403 Cook Hickory Hills Cellco Partnership Dba Verizon Wireless - Il
1-312-404 Cook Chicago T-mobile Usa, Inc.
1-312-405 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-406 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-407 Cook Chicago Ameritech Illinois
1-312-408 Cook Chicago Ameritech Illinois
1-312-409 Cook Chicago Ameritech Illinois
1-312-410 Cook Chicago Ameritech Illinois
1-312-412 Cook Schaumburg New Cingular Wireless Pcs, Llc - Il
1-312-413 Cook Chicago Ameritech Illinois
1-312-414 Cook Chicago Vonage Network Inc.
1-312-415 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-416 Cook Elk Grove Village Mci Worldcom Communications, Inc. - Il
1-312-417 Cook Chicago Ameritech Illinois
1-312-418 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-419 Cook Chicago Ameritech Illinois
1-312-420 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-421 Cook Chicago Ameritech Illinois
1-312-422 Cook Chicago Ameritech Illinois
1-312-423 Cook Arlington Heights Broadwing Communications, Llc - Il
1-312-424 Cook Chicago Ameritech Illinois
1-312-425 Cook Chicago Ameritech Illinois
1-312-426 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-427 Cook Chicago Ameritech Illinois
1-312-428 DuPage Oak Brook Level 3 Communications, Llc - Il
1-312-429 Cook Chicago Global Crossing Local Services, Inc.-il
1-312-430 Cook Chicago Ameritech Illinois
1-312-431 Cook Chicago Ameritech Illinois
1-312-432 Cook Chicago Ameritech Illinois
1-312-433 Cook Chicago Ameritech Illinois
1-312-434 Cook Arlington Heights Sprint Spectrum L.p.
1-312-435 Cook Chicago Ameritech Illinois
1-312-436 Cook Chicago Ameritech Illinois
1-312-437 Cook Arlington Heights Sprint Spectrum L.p.
1-312-438 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-439 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-440 Cook Chicago Ameritech Illinois
1-312-441 Cook Chicago Ameritech Illinois
1-312-442 Cook Chicago Ameritech Illinois
1-312-443 Cook Chicago Ameritech Illinois
1-312-444 Cook Chicago Ameritech Illinois
1-312-445 Cook Chicago Ameritech Illinois
1-312-446 Cook Arlington Heights Sprint Spectrum L.p.
1-312-447 Cook Chicago Ameritech Illinois
1-312-448 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-449 Cook Chicago American Messaging Services, Llc
1-312-450 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-451 Cook Chicago T-mobile Usa, Inc.
1-312-452 Cook Chicago American Messaging Services, Llc
1-312-453 Cook Elk Grove Village Mci Worldcom Communications, Inc. - Il
1-312-454 Cook Chicago Ameritech Illinois
1-312-455 Cook Chicago Ameritech Illinois
1-312-456 Cook Chicago Ameritech Illinois
1-312-457 Cook Chicago American Messaging Services, Llc
1-312-458 Cook Chicago Ameritech Illinois
1-312-459 Cook Chicago T-mobile Usa, Inc.
1-312-460 Cook Chicago Ameritech Illinois
1-312-461 Cook Chicago Ameritech Illinois
1-312-462 Cook Chicago Ameritech Illinois
1-312-463 Cook Chicago Ameritech Illinois
1-312-464 Cook Chicago Ameritech Illinois
1-312-465 Kane Elgin Us Xchange Of Illinois Llc Dba Choice One Comm Il
1-312-466 Cook Chicago Ameritech Illinois
1-312-467 Cook Chicago Ameritech Illinois
1-312-468 Cook Chicago T-mobile Usa, Inc.
1-312-469 Cook Chicago Ameritech Illinois
1-312-470 DuPage Bensenville Mcimetro Access Transmission Services Llc
1-312-471 DuPage Bensenville Mcimetro Access Transmission Services Llc
1-312-472 Cook Chicago Ameritech Illinois
1-312-473 DuPage Oak Brook Ymax Communications Corp. - Il
1-312-474 Cook Chicago Ameritech Illinois
1-312-475 Cook Chicago Ameritech Illinois
1-312-476 Cook Arlington Heights Sprint Spectrum L.p.
1-312-477 Cook Chicago Level 3 Communications, Llc - Il
1-312-478 Cook Chicago T-mobile Usa, Inc.
1-312-479 Cook Chicago At&t Local
1-312-480 DuPage Willowbrook New Cingular Wireless Pcs, Llc - Il
1-312-481 Cook Chicago Metro Pcs, Inc.
1-312-482 Cook Chicago Ameritech Illinois
1-312-483 Cook Chicago T-mobile Usa, Inc.
1-312-484 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-485 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-486 Cook Elk Grove Village Mci Worldcom Communications, Inc. - Il
1-312-487 Cook Chicago Metro Pcs, Inc.
1-312-488 Cook Chicago Pg Telecom Of Illinois Inc. - Il
1-312-489 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-490 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-491 Cook Chicago Ameritech Illinois
1-312-492 Cook Chicago Ameritech Illinois
1-312-493 Cook Chicago T-mobile Usa, Inc.
1-312-494 Cook Chicago Ameritech Illinois
1-312-495 DuPage Naperville Usa Mobility Wireless, Inc.
1-312-496 Cook Chicago Ameritech Illinois
1-312-497 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il
1-312-498 Cook Arlington Heights Sprint Spectrum L.p.
1-312-499 Cook Chicago Ameritech Illinois
1-312-500
1-312-501 Cook Hickory Hills Cellco Partnership Dba Verizon Wireless - Il
1-312-502 Kane Elgin Cellco Partnership Dba Verizon Wireless - Il