| 618-200 | Benton | Wireless | Verizon |
| 618-201 | Carbondale | Wireless | Verizon |
| 618-202 | Anna | Wireless | New Cingular Wireless |
| 618-203 | Carbondale | Wireless | Sprint Spectrum |
| 618-204 | Opdyke | Wireless | Sprint Spectrum |
| 618-205 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-206 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-207 | Belleville | Landline | Level 3 Communications |
| 618-208 | Wood River | Landline | Windstream Nuvox Illinois |
| 618-210 | Maryville | Wireless | New Cingular Wireless |
| 618-212 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-213 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-214 | Mount Vernon | Wireless | Verizon |
| 618-215 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-216 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-217 | Wood River | Wireless | T-Mobile |
| 618-218 | Benton | Wireless | Verizon |
| 618-219 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-220 | Belleville | Landline | Illinois Bell Tel |
| 618-221 | Breese | Landline | Peerless Network Of Illinois |
| 618-222 | Belleville | Landline | Illinois Bell Tel |
| 618-223 | East Saint Louis | Landline | Level 3 Communications |
| 618-224 | Trenton | Landline | Illinois Bell Tel |
| 618-225 | Granite City | Landline | Illinois Bell Tel |
| 618-226 | Sandoval | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-227 | Hoffman | Landline | Illinois Bell Tel |
| 618-228 | Trenton | Landline | Illinois Bell Tel |
| 618-229 | Belleville | Landline | Illinois Bell Tel |
| 618-230 | Maryville | Landline | Teleport Communications America |
| 618-231 | Centralia | Wireless | New Cingular Wireless |
| 618-232 | Hamburg | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-233 | Belleville | Landline | Illinois Bell Tel |
| 618-234 | Belleville | Landline | Illinois Bell Tel |
| 618-235 | Belleville | Landline | Illinois Bell Tel |
| 618-236 | Belleville | Landline | Illinois Bell Tel |
| 618-237 | Centralia | Wireless | New Cingular Wireless |
| 618-238 | Edgewood | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-239 | Belleville | Landline | Illinois Bell Tel |
| 618-240 | Mount Carmel | Wireless | Verizon |
| 618-241 | Mount Vernon | Landline | Illinois Bell Tel |
| 618-242 | Mount Vernon | Landline | Illinois Bell Tel |
| 618-243 | Okawville | Landline | Frontier North |
| 618-244 | Mount Vernon | Landline | Illinois Bell Tel |
| 618-245 | Farina | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-246 | Mount Vernon | Landline | Illinois Bell Tel |
| 618-247 | Sandoval | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-248 | Albers | Landline | Frontier North |
| 618-249 | Woodlawn | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-250 | Collinsville | Wireless | New Cingular Wireless |
| 618-251 | Wood River | Landline | Illinois Bell Tel |
| 618-252 | Harrisburg | Landline | Frontier North |
| 618-253 | Harrisburg | Landline | Frontier North |
| 618-254 | Wood River | Landline | Illinois Bell Tel |
| 618-255 | Wood River | Landline | Illinois Bell Tel |
| 618-256 | Belleville | Landline | Illinois Bell Tel |
| 618-257 | Belleville | Landline | Illinois Bell Tel |
| 618-258 | Wood River | Landline | Illinois Bell Tel |
| 618-259 | Wood River | Landline | Illinois Bell Tel |
| 618-260 | Hoyleton | Landline | Bandwidth.com |
| 618-261 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-262 | Mount Carmel | Landline | Frontier North |
| 618-263 | Mount Carmel | Landline | Frontier North |
| 618-264 | Herod | Landline | Shawnee Tel. |
| 618-265 | New Haven | Landline | Frontier North |
| 618-266 | Texico | Landline | Illinois Bell Tel |
| 618-267 | Centralia | Wireless | Verizon |
| 618-268 | Raleigh | Landline | Frontier North |
| 618-269 | Shawneetown | Landline | Frontier North |
| 618-271 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-272 | Ridgway | Landline | Frontier North |
| 618-273 | Eldorado | Landline | Frontier North |
| 618-274 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-275 | Junction | Landline | Shawnee Tel. |
| 618-276 | Equality | Landline | Shawnee Tel. |
| 618-277 | Belleville | Landline | Illinois Bell Tel |
| 618-278 | Bunker Hill | Landline | Frontier Communications |
| 618-279 | Waltonville | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-280 | Okawville | Landline | Bandwidth.com |
| 618-281 | Columbia | Landline | Harrisonville Tel. |
| 618-282 | Red Bud | Landline | Harrisonville Tel. |
| 618-283 | Vandalia | Landline | Illinois Bell Tel |
| 618-284 | Prairie Du Rocher | Landline | Harrisonville Tel. |
| 618-285 | Rosiclare | Landline | Shawnee Tel. |
| 618-286 | Dupo | Landline | Harrisonville Tel. |
| 618-287 | Elizabethtown | Landline | Shawnee Tel. |
| 618-288 | Glen Carbon | Landline | Illinois Bell Tel |
| 618-289 | Cave In Rock | Landline | Shawnee Tel. |
| 618-290 | Rosiclare | Landline | Shawneelec |
| 618-291 | Carbondale | Wireless | American Messaging Services |
| 618-292 | Centralia | Wireless | New Cingular Wireless |
| 618-293 | Fairview Heights | Landline | Illinois Bell Tel |
| 618-294 | Belleville | Landline | Delta Comms |
| 618-295 | Marissa | Landline | Frontier North |
| 618-296 | Edwardsville | Landline | Illinois Bell Tel |
| 618-297 | Eldorado | Landline | Delta Comms |
| 618-298 | Mount Carmel | Landline | Frontier North |
| 618-299 | Allendale | Landline | Frontier North |
| 618-300 | Maryville | Landline | Ymax Communications |
| 618-301 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-302 | Albion | Wireless | Verizon |
| 618-303 | Carbondale | Wireless | New Cingular Wireless |
| 618-304 | Venice | Wireless | Verizon |
| 618-305 | Carbondale | Landline | AT&T |
| 618-306 | Cairo | Wireless | Verizon |
| 618-307 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-308 | Mc Leansboro | Wireless | Verizon |
| 618-309 | Metropolis | Landline | AT&T |
| 618-310 | Belleville | Landline | Level 3 Communications |
| 618-312 | Salem | Landline | Wabash Independent Networks |
| 618-313 | Ridgway | Wireless | Verizon |
| 618-314 | Nashville | Wireless | Verizon |
| 618-315 | Opdyke | Wireless | New Cingular Wireless |
| 618-316 | Opdyke | Wireless | Sprint Spectrum |
| 618-317 | Sparta | Landline | Verizon |
| 618-318 | Pinckneyville | Wireless | Verizon |
| 618-319 | Carbondale | Landline | Level 3 Communications |
| 618-320 | Olney | Wireless | New Cingular Wireless |
| 618-321 | Maryville | Wireless | American Messaging Services |
| 618-322 | Centralia | Wireless | Verizon |
| 618-323 | Iuka | Landline | Illinois Bell Tel |
| 618-324 | Maryville | Wireless | American Messaging Services |
| 618-325 | Maryville | Wireless | American Messaging Services |
| 618-326 | Mulberry Grove | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-327 | Nashville | Landline | Illinois Bell Tel |
| 618-328 | Dow | Landline | Level 3 Communications |
| 618-329 | Oakdale | Landline | Egyptian Tel. Coop. Assn. |
| 618-330 | Kampsville | Landline | Bandwidth.com |
| 618-331 | Carbondale | Landline | Mcimetro Access Transmission Services |
| 618-332 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-333 | Herrin | Wireless | Novacom |
| 618-334 | Maryville | Wireless | New Cingular Wireless |
| 618-335 | Centralia | Wireless | Verizon |
| 618-336 | Tamaroa | Landline | Egyptian Tel. Coop. Assn. |
| 618-337 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-338 | Maryville | Wireless | American Messaging Services |
| 618-339 | Centralia | Wireless | New Cingular Wireless |
| 618-340 | Red Bud | Wireless | New Cingular Wireless |
| 618-341 | Maryville | Wireless | American Messaging Services |
| 618-342 | Villa Ridge | Landline | Frontier North |
| 618-343 | Collinsville | Landline | Illinois Bell Tel |
| 618-344 | Collinsville | Landline | Illinois Bell Tel |
| 618-345 | Collinsville | Landline | Illinois Bell Tel |
| 618-346 | Collinsville | Landline | Illinois Bell Tel |
| 618-347 | Saint Elmo | Landline | Frontier Communications |
| 618-348 | Herrick | Landline | Bandwidth.com |
| 618-349 | Saint Peter | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-350 | Marine | Landline | Bandwidth.com |
| 618-351 | Carbondale | Landline | Frontier North |
| 618-352 | Centralia | Wireless | New Cingular Wireless |
| 618-353 | Carbondale | Wireless | New Cingular Wireless |
| 618-354 | Olney | Wireless | New Cingular Wireless |
| 618-355 | Belleville | Landline | Illinois Bell Tel |
| 618-356 | Bunker Hill | Landline | Level 3 Communications |
| 618-357 | Pinckneyville | Landline | Frontier North |
| 618-358 | New Baden | Landline | Bandwidth.com |
| 618-359 | Centralia | Wireless | New Cingular Wireless |
| 618-360 | Texico | Landline | Illinois Bell Tel |
| 618-361 | Pinckneyville | Landline | Mcimetro Access Transmission Services |
| 618-362 | Gillespie | Landline | Frontier Communications |
| 618-363 | Venice | Wireless | Verizon |
| 618-364 | Marion | Landline | AT&T |
| 618-365 | Venice | Landline | AT&T |
| 618-366 | Modoc | Landline | Southwestern Bell |
| 618-367 | Centralia | Wireless | Verizon |
| 618-368 | Hardin | Landline | Level 3 Communications |
| 618-369 | Maryville | Wireless | American Messaging Services |
| 618-370 | Medora | Landline | Level 3 Communications |
| 618-371 | Tamaroa | Landline | Level 3 Communications |
| 618-372 | Brighton | Landline | Illinois Bell Tel |
| 618-373 | Venice | Wireless | New Cingular Wireless |
| 618-374 | Grafton | Landline | Illinois Bell Tel |
| 618-375 | Grayville | Landline | Frontier North |
| 618-376 | Kane | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-377 | Bethalto | Landline | Illinois Bell Tel |
| 618-378 | Norris City | Landline | Frontier North |
| 618-379 | Norris City | Landline | Delta Comms |
| 618-380 | Carmi | Landline | Delta Comms |
| 618-381 | Collinsville | Landline | Mcimetro Access Transmission Services |
| 618-382 | Carmi | Landline | Frontier North |
| 618-383 | Carmi | Landline | New Cingular Wireless |
| 618-384 | Carmi | Landline | Frontier North |
| 618-385 | Tamaroa | Landline | Level 3 Communications |
| 618-386 | Royalton | Landline | Mediacom Telephony Of Illinois |
| 618-387 | Carmi | Landline | Level 3 Communications |
| 618-388 | Olney | Landline | Level 3 Communications |
| 618-389 | Ashley | Landline | Level 3 Communications |
| 618-390 | Woodlawn | Landline | Level 3 Communications |
| 618-391 | Glen Carbon | Landline | Illinois Bell Tel |
| 618-392 | Olney | Landline | Frontier North |
| 618-393 | Olney | Landline | Frontier North |
| 618-394 | Fairview Heights | Landline | Illinois Bell Tel |
| 618-395 | Olney | Landline | Frontier North |
| 618-396 | Batchtown | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-397 | Fairview Heights | Landline | Illinois Bell Tel |
| 618-398 | Fairview Heights | Landline | Illinois Bell Tel |
| 618-399 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-400 | Millstadt | Landline | Htc Communications |
| 618-401 | Maryville | Wireless | New Cingular Wireless |
| 618-402 | Maryville | Wireless | New Cingular Wireless |
| 618-403 | Louisville | Landline | Wabash Independent Networks |
| 618-404 | Alhambra | Landline | Big River Telephone Company |
| 618-405 | Smithton | Landline | Mediacom Telephony Of Illinois |
| 618-406 | Maryville | Wireless | New Cingular Wireless |
| 618-407 | Maryville | Wireless | New Cingular Wireless |
| 618-408 | Carlyle | Landline | AT&T |
| 618-409 | Maryville | Wireless | New Cingular Wireless |
| 618-410 | Collinsville | Wireless | Sprint Spectrum |
| 618-412 | Carbondale | Wireless | Sprint Spectrum |
| 618-413 | Marine | Landline | Peerless Network Of Illinois |
| 618-414 | Collinsville | Landline | CenturyLink Communications |
| 618-415 | Mode | Landline | Bandwidth.com |
| 618-416 | Belleville | Landline | Charter Fiberlink |
| 618-417 | Mount Vernon | Wireless | T-Mobile |
| 618-418 | Collinsville | Landline | Mcimetro Access Transmission Services |
| 618-419 | Venice | Wireless | T-Mobile |
| 618-420 | Maryville | Wireless | New Cingular Wireless |
| 618-421 | Carbondale | Landline | New Cingular Wireless |
| 618-422 | Marion | Landline | Futiva |
| 618-423 | Ramsey | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-424 | Okawville | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-425 | Smithboro | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-426 | Ava | Landline | Frontier North |
| 618-427 | Brownstown | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-428 | Herrick | Landline | Frontier Communications |
| 618-429 | Olney | Landline | Delta Comms |
| 618-430 | Altamont | Landline | Mediacom Telephony Of Illinois |
| 618-431 | Vandalia | Landline | Big River Telephone Company |
| 618-432 | Patoka | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-433 | Alton | Landline | Illinois Bell Tel |
| 618-434 | Carbondale | Wireless | T-Mobile |
| 618-435 | Benton | Landline | Frontier North |
| 618-436 | Centralia | Landline | Illinois Bell Tel |
| 618-437 | Ina | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-438 | Benton | Landline | Frontier North |
| 618-439 | Benton | Landline | Frontier North |
| 618-440 | Marion | Wireless | Verizon |
| 618-441 | Ashley | Landline | Level 3 Communications |
| 618-442 | Parkersburg | Landline | Frontier North |
| 618-443 | Sparta | Landline | Frontier North |
| 618-444 | Venice | Wireless | Verizon |
| 618-445 | Albion | Landline | Frontier North |
| 618-446 | Browns | Landline | Wabash Tel. |
| 618-447 | Collinsville | Wireless | Sprint Spectrum |
| 618-448 | Mascoutah | Landline | Delta Comms |
| 618-449 | Sparta | Landline | Big River Telephone Company |
| 618-450 | Mount Carmel | Landline | Big River Telephone Company |
| 618-451 | Granite City | Landline | Illinois Bell Tel |
| 618-452 | Granite City | Landline | Illinois Bell Tel |
| 618-453 | Carbondale | Landline | Frontier North |
| 618-454 | Oblong | Landline | Mediacom Telephony Of Illinois |
| 618-455 | Willow Hill | Landline | Frontier North |
| 618-456 | West Salem | Landline | Frontier North |
| 618-457 | Carbondale | Landline | Frontier North |
| 618-458 | Waterloo | Landline | Harrisonville Tel. |
| 618-459 | Worden | Landline | Madison Tel. |
| 618-460 | Louisville | Landline | Mediacom Telephony Of Illinois |
| 618-461 | Saint Elmo | Landline | Mediacom Telephony Of Illinois |
| 618-462 | Alton | Landline | Illinois Bell Tel |
| 618-463 | Alton | Landline | Illinois Bell Tel |
| 618-464 | Nashville | Landline | Charter Fiberlink |
| 618-465 | Alton | Landline | Illinois Bell Tel |
| 618-466 | Alton | Landline | Illinois Bell Tel |
| 618-467 | Alton | Landline | Illinois Bell Tel |
| 618-468 | Alton | Landline | Illinois Bell Tel |
| 618-469 | Robinson | Landline | Mediacom Telephony Of Illinois |
| 618-470 | Columbia | Landline | Teleport Communications America |
| 618-471 | Wood River | Landline | Mcimetro Access Transmission Services |
| 618-472 | Mount Vernon | Wireless | New Cingular Wireless |
| 618-473 | Smithton | Landline | Frontier North |
| 618-474 | Alton | Landline | Illinois Bell Tel |
| 618-475 | New Athens | Landline | Illinois Bell Tel |
| 618-476 | Millstadt | Landline | Frontier North |
| 618-477 | Collinsville | Landline | Aero Communications |
| 618-478 | Nashville | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-479 | Salem | Landline | Level 3 Communications |
| 618-480 | Oblong | Landline | Mediacom Telephony Of Illinois |
| 618-481 | Brighton | Landline | CenturyLink Communications |
| 618-482 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-483 | Altamont | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-484 | East Saint Louis | Landline | Telnyx |
| 618-485 | Ashley | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-486 | Lawrenceville | Landline | Vonage America |
| 618-487 | Mode | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-488 | Alhambra | Landline | Alhambra-grantfork Tel. |
| 618-489 | Fairview Heights | Landline | Illinois Bell Tel |
| 618-490 | Carbondale | Landline | Mediacom Telephony Of Illinois |
| 618-491 | Collinsville | Landline | Onvoy |
| 618-492 | Edgewood | Landline | Onvoy |
| 618-493 | Hoyleton | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-494 | Jerseyville | Landline | Level 3 Communications |
| 618-495 | Hoyleton | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-496 | Tamaroa | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-497 | Percy | Landline | Frontier North |
| 618-498 | Jerseyville | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-499 | Harrisburg | Wireless | Verizon |
| 618-500 | East Saint Louis | Landline | Onvoy |
| 618-501 | Collinsville | Landline | Windstream Nuvox Illinois |
| 618-502 | Fieldon | Landline | Bandwidth.com |
| 618-503 | Carbondale | Landline | Level 3 Communications |
| 618-504 | Waterloo | Wireless | T-Mobile |
| 618-505 | Troy | Landline | Level 3 Communications |
| 618-506 | Hettick | Landline | Bandwidth.com |
| 618-507 | Woodlawn | Landline | Level 3 Communications |
| 618-508 | Flora | Landline | Level 3 Communications |
| 618-509 | Belleville | Landline | Level 3 Communications |
| 618-510 | Saint Elmo | Landline | Mediacom Telephony Of Illinois |
| 618-512 | Granite City | Landline | Illinois Bell Tel |
| 618-513 | Whittington | Wireless | New Cingular Wireless |
| 618-514 | Maryville | Wireless | T-Mobile |
| 618-515 | East Saint Louis | Wireless | T-Mobile |
| 618-516 | Fairfield | Landline | New Cingular Wireless |
| 618-517 | Olney | Wireless | T-Mobile |
| 618-518 | Raleigh | Wireless | New Cingular Wireless |
| 618-519 | Carbondale | Landline | Delta Comms |
| 618-520 | Maryville | Wireless | New Cingular Wireless |
| 618-521 | Carbondale | Wireless | Verizon |
| 618-523 | Germantown | Landline | Illinois Bell Tel |
| 618-524 | Metropolis | Landline | Frontier North |
| 618-525 | Carbondale | Wireless | New Cingular Wireless |
| 618-526 | Breese | Landline | Illinois Bell Tel |
| 618-527 | Carbondale | Wireless | New Cingular Wireless |
| 618-528 | Carbondale | Wireless | New Cingular Wireless |
| 618-529 | Carbondale | Landline | Frontier North |
| 618-530 | Maryville | Wireless | Sprint Spectrum |
| 618-531 | Maryville | Wireless | Sprint Spectrum |
| 618-532 | Centralia | Landline | Illinois Bell Tel |
| 618-533 | Centralia | Landline | Illinois Bell Tel |
| 618-534 | Carbondale | Wireless | Verizon |
| 618-535 | Jerseyville | Wireless | United States Cellular |
| 618-536 | Carbondale | Landline | Frontier North |
| 618-537 | Lebanon | Landline | Illinois Bell Tel |
| 618-538 | Millstadt | Landline | Frontier North |
| 618-539 | Freeburg | Landline | Illinois Bell Tel |
| 618-540 | Maryville | Wireless | New Cingular Wireless |
| 618-541 | Maryville | Wireless | New Cingular Wireless |
| 618-542 | Du Quoin | Landline | Frontier North |
| 618-543 | Metropolis | Landline | Frontier North |
| 618-544 | Robinson | Landline | Frontier North |
| 618-545 | Centralia | Landline | Illinois Bell Tel |
| 618-546 | Robinson | Landline | Frontier North |
| 618-547 | Kinmundy | Landline | Illinois Bell Tel |
| 618-548 | Salem | Landline | Illinois Bell Tel |
| 618-549 | Carbondale | Landline | Frontier North |
| 618-550 | Maryville | Wireless | New Cingular Wireless |
| 618-551 | East Saint Louis | Landline | Peerless Network Of Illinois |
| 618-552 | Sandoval | Landline | Bandwidth.com |
| 618-553 | Robinson | Wireless | Verizon |
| 618-554 | Robinson | Wireless | Verizon |
| 618-556 | Jerseyville | Wireless | United States Cellular |
| 618-557 | Robinson | Landline | Frontier North |
| 618-558 | Maryville | Wireless | Sprint Spectrum |
| 618-559 | Carbondale | Wireless | Verizon |
| 618-560 | Maryville | Wireless | New Cingular Wireless |
| 618-561 | Carbondale | Wireless | New Cingular Wireless |
| 618-562 | Annapolis | Wireless | New Cingular Wireless |
| 618-563 | Hutsonville | Landline | Frontier North |
| 618-564 | Brookport | Landline | Frontier North |
| 618-565 | Murphysboro | Landline | Frontier North |
| 618-566 | Mascoutah | Landline | Frontier North |
| 618-567 | Maryville | Wireless | Sprint Spectrum |
| 618-568 | Elkville | Landline | Frontier North |
| 618-569 | Annapolis | Landline | Frontier North |
| 618-570 | Maryville | Wireless | New Cingular Wireless |
| 618-571 | Pinckneyville | Wireless | Verizon |
| 618-572 | Flora | Landline | AT&T |
| 618-574 | Aviston | Landline | AT&T |
| 618-575 | Saint Elmo | Landline | Bandwidth.com |
| 618-576 | Hardin | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-577 | Breese | Landline | Bandwidth.com |
| 618-578 | East Saint Louis | Wireless | New Cingular Wireless |
| 618-579 | Marion | Wireless | Sprint Spectrum |
| 618-580 | Maryville | Wireless | Sprint Spectrum |
| 618-581 | Maryville | Wireless | Sprint Spectrum |
| 618-582 | New Athens | Landline | Mcimetro Access Transmission Services |
| 618-583 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-584 | Flat Rock | Landline | Flat Rock Tel. Co-op |
| 618-585 | Bunker Hill | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-586 | Palestine | Landline | Frontier North |
| 618-587 | Sparta | Landline | Frontier North |
| 618-588 | New Baden | Landline | Frontier North |
| 618-589 | O Fallon | Landline | Level 3 Communications |
| 618-590 | Walnut Hill | Landline | Bandwidth.com |
| 618-591 | Eldorado | Landline | Radiantiq |
| 618-592 | Oblong | Landline | Odin Telephone Exchange |
| 618-593 | Maryville | Wireless | Sprint Spectrum |
| 618-594 | Carlyle | Landline | Illinois Bell Tel |
| 618-595 | Shipman | Landline | Bandwidth.com |
| 618-596 | Zeigler | Landline | Frontier North |
| 618-597 | Centralia | Wireless | American Messaging Services |
| 618-598 | Okawville | Landline | Onvoy |
| 618-599 | Fairfield | Wireless | Verizon |
| 618-600 | East Saint Louis | Landline | Onvoy |
| 618-601 | Dupo | Landline | Charter Fiberlink |
| 618-603 | Benton | Wireless | Verizon |
| 618-604 | Maryville | Wireless | New Cingular Wireless |
| 618-605 | Carbondale | Wireless | Brightlink Communications |
| 618-606 | Collinsville | Landline | Mcimetro Access Transmission Services |
| 618-607 | Collinsville | Landline | CenturyLink Communications |
| 618-608 | Nashville | Landline | Bandwidth.com |
| 618-609 | Grayville | Wireless | New Cingular Wireless |
| 618-610 | Venice | Wireless | New Cingular Wireless |
| 618-612 | Red Bud | Wireless | New Cingular Wireless |
| 618-613 | Carlyle | Landline | Level 3 Communications |
| 618-614 | Anna | Landline | New Cingular Wireless |
| 618-615 | Chester | Landline | Verizon |
| 618-616 | Maryville | Wireless | New Cingular Wireless |
| 618-617 | Thompsonville | Landline | Onvoy |
| 618-619 | Godfrey | Landline | Mcleodusa Telecommunication Services |
| 618-620 | Hamburg | Landline | Onvoy |
| 618-621 | Cairo | Landline | Vonage America |
| 618-622 | O Fallon | Landline | Illinois Bell Tel |
| 618-623 | East Saint Louis | Wireless | New Cingular Wireless |
| 618-624 | O Fallon | Landline | Illinois Bell Tel |
| 618-625 | Sesser | Landline | Frontier North |
| 618-626 | Du Quoin | Landline | Teleport Communications America |
| 618-627 | Thompsonville | Landline | Frontier North |
| 618-628 | O Fallon | Landline | Illinois Bell Tel |
| 618-629 | Ewing | Landline | Frontier North |
| 618-631 | Collinsville | Landline | Stratus Networks |
| 618-632 | O Fallon | Landline | Illinois Bell Tel |
| 618-633 | Worden | Landline | Madison Tel. |
| 618-634 | Karnak | Landline | Frontier North |
| 618-635 | Staunton | Landline | Madison Tel. |
| 618-636 | Godfrey | Landline | Brightlink Communications |
| 618-637 | Worden | Landline | Madison Tel. |
| 618-638 | Metropolis | Landline | Verizon |
| 618-639 | Jerseyville | Landline | Grafton Technologies |
| 618-640 | Saint Jacob | Landline | Charter Fiberlink |
| 618-641 | Belleville | Landline | Illinois Bell Tel |
| 618-643 | Mc Leansboro | Landline | Frontier North |
| 618-644 | Saint Jacob | Landline | Home Tel. |
| 618-645 | Metropolis | Wireless | New Cingular Wireless |
| 618-646 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-647 | Broughton | Landline | Hamilton County Telephone Co-op |
| 618-648 | Wayne City | Landline | Hamilton County Telephone Co-op |
| 618-649 | Mounds | Landline | Level 3 Communications |
| 618-650 | Edwardsville | Landline | Illinois Bell Tel |
| 618-651 | Highland | Landline | Frontier North |
| 618-653 | Kampsville | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-654 | Highland | Landline | Frontier North |
| 618-655 | Edwardsville | Landline | Illinois Bell Tel |
| 618-656 | Edwardsville | Landline | Illinois Bell Tel |
| 618-657 | Cypress | Landline | Frontier North |
| 618-658 | Vienna | Landline | Frontier North |
| 618-659 | Edwardsville | Landline | Illinois Bell Tel |
| 618-660 | Maryville | Wireless | New Cingular Wireless |
| 618-661 | Thebes | Landline | Southwestern Bell |
| 618-662 | Flora | Landline | Frontier North |
| 618-663 | Benton | Landline | Level 3 Communications |
| 618-664 | Greenville | Landline | Illinois Bell Tel |
| 618-665 | Louisville | Landline | Wabash Tel. |
| 618-666 | East Saint Louis | Landline | Onvoy |
| 618-667 | Troy | Landline | Illinois Bell Tel |
| 618-668 | Golconda | Landline | Onvoy |
| 618-669 | Pocahontas | Landline | Frontier Communications |
| 618-670 | Maryville | Wireless | Sprint Spectrum |
| 618-671 | Collinsville | Landline | T-Mobile |
| 618-672 | Eddyville | Landline | Shawnee Tel. |
| 618-673 | Cisne | Landline | Wabash Tel. |
| 618-674 | Carrier Mills | Landline | Level 3 Communications |
| 618-675 | Marine | Landline | Alhambra-grantfork Tel. |
| 618-676 | Clay City | Landline | Frontier North |
| 618-677 | New Athens | Landline | Frontier North |
| 618-678 | Xenia | Landline | Wabash Tel. |
| 618-679 | Thebes | Landline | Level 3 Communications |
| 618-680 | Collinsville | Landline | Teleport Communications America |
| 618-681 | Carterville | Landline | New Cingular Wireless |
| 618-683 | Golconda | Landline | Frontier North |
| 618-684 | Murphysboro | Landline | Frontier North |
| 618-685 | Collinsville | Landline | Teleport Communications America |
| 618-686 | Watson | Landline | Wabash Tel. |
| 618-687 | Murphysboro | Landline | Frontier North |
| 618-688 | East Saint Louis | Landline | Mcleodusa Telecommunication Services |
| 618-689 | Louisville | Landline | Frontier North |
| 618-690 | Greenville | Landline | Illinois Bell Tel |
| 618-691 | Maryville | Wireless | New Cingular Wireless |
| 618-692 | Edwardsville | Landline | Illinois Bell Tel |
| 618-693 | Bethalto | Landline | Mcimetro Access Transmission Services |
| 618-694 | Marion | Landline | New Cingular Wireless |
| 618-695 | Simpson | Landline | Shawnee Tel. |
| 618-696 | Maryville | Wireless | T-Mobile |
| 618-697 | Anna | Wireless | Verizon |
| 618-698 | Belleville | Wireless | T-Mobile |
| 618-699 | Vandalia | Landline | Level 3 Communications |
| 618-701 | Highland | Wireless | T-Mobile |
| 618-702 | Lebanon | Wireless | T-Mobile |
| 618-703 | Greenville | Landline | Level 3 Communications |
| 618-704 | Vandalia | Wireless | Sprint Spectrum |
| 618-706 | Batchtown | Landline | CenturyLink Communications |
| 618-707 | Lawrenceville | Landline | Level 3 Communications |
| 618-708 | Sparta | Wireless | New Cingular Wireless |
| 618-709 | East Saint Louis | Wireless | T-Mobile |
| 618-710 | Freeburg | Landline | Charter Fiberlink |
| 618-712 | Thebes | Landline | Level 3 Communications |
| 618-713 | Carbondale | Wireless | Verizon |
| 618-714 | Mascoutah | Landline | Frontier North |
| 618-715 | Harrisburg | Landline | Level 3 Communications |
| 618-716 | Trenton | Landline | Onvoy |
| 618-717 | Bethalto | Landline | Level 3 Communications |
| 618-718 | Albion | Landline | Radiantiq |
| 618-719 | Columbia | Wireless | Sprint Spectrum |
| 618-722 | Belleville | Landline | Level 3 Communications |
| 618-723 | Noble | Landline | Frontier North |
| 618-724 | Christopher | Landline | Frontier North |
| 618-726 | O Fallon | Landline | AT&T |
| 618-727 | Herrin | Wireless | New Cingular Wireless |
| 618-728 | Macedonia | Landline | Hamilton County Telephone Co-op |
| 618-729 | Medora | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-731 | Mount Vernon | Landline | Teleport Communications America |
| 618-732 | Bluford | Landline | Illinois Bell Tel |
| 618-733 | Carterville | Landline | Mediacom Telephony Of Illinois |
| 618-734 | Cairo | Landline | Illinois Bell Tel |
| 618-735 | Woodlawn | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-736 | Opdyke | Landline | Hamilton County Telephone Co-op |
| 618-739 | Brookport | Wireless | Sprint Spectrum |
| 618-740 | Salem | Landline | Wabash Independent Networks |
| 618-741 | Maryville | Wireless | Sprint Spectrum |
| 618-742 | Villa Ridge | Landline | Illinois Bell Tel |
| 618-744 | Scott Air Force Base | Landline | Illinois Bell Tel |
| 618-745 | Mounds | Landline | Illinois Bell Tel |
| 618-746 | Scott Air Force Base | Landline | Illinois Bell Tel |
| 618-747 | Tamms | Landline | Illinois Bell Tel |
| 618-748 | Mound City | Landline | Illinois Bell Tel |
| 618-749 | Keyesport | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-751 | Marion | Wireless | New Cingular Wireless |
| 618-752 | Noble | Landline | Frontier North |
| 618-753 | Chesterfield | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-754 | Dundas | Landline | Frontier North |
| 618-755 | Texico | Landline | Illinois Bell Tel |
| 618-756 | Belle Rive | Landline | Hamilton County Telephone Co-op |
| 618-757 | Springerton | Landline | Hamilton County Telephone Co-op |
| 618-758 | Coulterville | Landline | Frontier North |
| 618-759 | Vienna | Wireless | New Cingular Wireless |
| 618-762 | Waltonville | Landline | Delta Comms |
| 618-763 | Jacob | Landline | Egyptian Tel. Coop. Assn. |
| 618-764 | Thebes | Landline | Illinois Bell Tel |
| 618-765 | Bartelso | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-767 | Belleville | Landline | Level 3 Communications |
| 618-768 | Marissa | Landline | Egyptian Tel. Coop. Assn. |
| 618-770 | Hutsonville | Landline | Mediacom Telephony Of Illinois |
| 618-771 | Vienna | Wireless | New Cingular Wireless |
| 618-772 | Collinsville | Wireless | New Cingular Wireless |
| 618-773 | Norris City | Landline | Hamilton County Telephone Co-op |
| 618-774 | Walsh | Landline | Egyptian Tel. Coop. Assn. |
| 618-775 | Odin | Landline | Odin Telephone Exchange |
| 618-776 | Olive Branch | Landline | Illinois Bell Tel |
| 618-777 | Stonefort | Landline | Frontier North |
| 618-778 | Hettick | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-779 | Maryville | Wireless | Sprint Spectrum |
| 618-780 | Centralia | Wireless | New Cingular Wireless |
| 618-781 | Maryville | Wireless | Sprint Spectrum |
| 618-782 | Maryville | Wireless | American Messaging Services |
| 618-783 | Newton | Landline | Frontier North |
| 618-784 | Maryville | Wireless | American Messaging Services |
| 618-785 | Baldwin | Landline | Egyptian Tel. Coop. Assn. |
| 618-786 | Grafton | Landline | Grafton Tel. |
| 618-787 | Tamaroa | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-788 | Anna | Landline | Fractel |
| 618-789 | Maryville | Wireless | T-Mobile |
| 618-790 | Du Quoin | Landline | Level 3 Communications |
| 618-791 | Venice | Wireless | Verizon |
| 618-792 | Venice | Wireless | Verizon |
| 618-793 | Hidalgo | Landline | Frontier North |
| 618-795 | Maryville | Wireless | New Cingular Wireless |
| 618-797 | Granite City | Landline | Illinois Bell Tel |
| 618-798 | Granite City | Landline | Illinois Bell Tel |
| 618-799 | Maryville | Wireless | New Cingular Wireless |
| 618-800 | Edwardsville | Landline | Onvoy |
| 618-801 | Collinsville | Landline | Onvoy |
| 618-802 | Venice | Wireless | T-Mobile |
| 618-803 | Maryville | Wireless | New Cingular Wireless |
| 618-804 | Lawrenceville | Wireless | Verizon |
| 618-806 | Maryville | Wireless | New Cingular Wireless |
| 618-808 | Lebanon | Landline | Charter Fiberlink |
| 618-816 | Mount Vernon | Landline | Level 3 Communications |
| 618-821 | Louisville | Landline | Mediacom Telephony Of Illinois |
| 618-822 | Kell | Landline | Illinois Bell Tel |
| 618-823 | East Saint Louis | Wireless | T-Mobile |
| 618-824 | Addieville | Landline | Egyptian Tel. Coop. Assn. |
| 618-825 | Belleville | Landline | Illinois Bell Tel |
| 618-826 | Chester | Landline | Frontier North |
| 618-827 | Dongola | Landline | Frontier North |
| 618-829 | Saint Elmo | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-830 | Venice | Wireless | Verizon |
| 618-833 | Anna | Landline | Frontier North |
| 618-835 | Johnsonville | Landline | Wabash Tel. |
| 618-836 | Shipman | Landline | Frontier Communications |
| 618-837 | Olney | Wireless | New Cingular Wireless |
| 618-838 | Olney | Wireless | New Cingular Wireless |
| 618-839 | Olney | Wireless | New Cingular Wireless |
| 618-841 | Harrisburg | Wireless | Verizon |
| 618-842 | Fairfield | Landline | Frontier North |
| 618-843 | Olney | Wireless | New Cingular Wireless |
| 618-844 | East Saint Louis | Landline | AT&T |
| 618-845 | Ullin | Landline | Frontier North |
| 618-846 | Shobonier | Landline | Odin Telephone Exchange |
| 618-847 | Fairfield | Landline | Frontier North |
| 618-851 | Anna | Landline | Onvoy Spectrum |
| 618-852 | Newton | Wireless | New Cingular Wireless |
| 618-853 | Evansville | Landline | Frontier North |
| 618-854 | Mount Erie | Landline | Wabash Tel. |
| 618-855 | East Saint Louis | Landline | Onvoy |
| 618-857 | East Saint Louis | Landline | Charter Fiberlink |
| 618-859 | Walsh | Landline | Frontier North |
| 618-861 | Chester | Landline | Level 3 Communications |
| 618-863 | Calhoun | Landline | Frontier North |
| 618-867 | De Soto | Landline | Frontier North |
| 618-869 | Claremont | Landline | Frontier North |
| 618-871 | Allendale | Landline | Teleport Communications America |
| 618-874 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-875 | East Saint Louis | Landline | Illinois Bell Tel |
| 618-876 | Granite City | Landline | Illinois Bell Tel |
| 618-877 | Granite City | Landline | Illinois Bell Tel |
| 618-878 | Mount Carmel | Wireless | New Cingular Wireless |
| 618-879 | Olney | Landline | Brightlink Communications |
| 618-881 | Altamont | Landline | Mediacom Telephony Of Illinois |
| 618-882 | Highland | Landline | Level 3 Communications |
| 618-883 | Brussels | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-884 | Lawrenceville | Landline | Frontier North |
| 618-885 | Dow | Landline | Citizens Telecom Co Illinois-frontier Citizens |
| 618-887 | Marine | Landline | Illinois Bell Tel |
| 618-888 | Worden | Landline | Madison Tel. |
| 618-889 | Marion | Wireless | Verizon |
| 618-891 | Tamms | Landline | Level 3 Communications |
| 618-892 | Farina | Landline | Mediacom Telephony Of Illinois |
| 618-893 | Cobden | Landline | Frontier North |
| 618-895 | Wayne City | Landline | Frontier North |
| 618-896 | Springerton | Landline | Frontier North |
| 618-897 | Geff | Landline | Wabash Tel. |
| 618-898 | Sims | Landline | Wabash Tel. |
| 618-899 | Mount Vernon | Landline | Delta Comms |
| 618-900 | East Saint Louis | Landline | Onvoy |
| 618-910 | Venice | Wireless | Verizon |
| 618-912 | Bridgeport | Landline | Level 3 Communications |
| 618-917 | Wood River | Wireless | T-Mobile |
| 618-918 | Centralia | Wireless | New Cingular Wireless |
| 618-919 | Fairfield | Wireless | Verizon |
| 618-920 | Venice | Wireless | Verizon |
| 618-921 | Metropolis | Landline | New Cingular Wireless |
| 618-922 | Marion | Wireless | New Cingular Wireless |
| 618-923 | West Frankfort | Wireless | New Cingular Wireless |
| 618-924 | Vergennes | Wireless | New Cingular Wireless |
| 618-925 | Herrin | Wireless | New Cingular Wireless |
| 618-926 | Raleigh | Wireless | New Cingular Wireless |
| 618-927 | Whittington | Wireless | New Cingular Wireless |
| 618-928 | Lawrenceville | Landline | Frontier North |
| 618-931 | Granite City | Landline | Illinois Bell Tel |
| 618-932 | West Frankfort | Landline | Frontier North |
| 618-934 | Trenton | Landline | Frontier North |
| 618-935 | Valmeyer | Landline | Harrisonville Tel. |
| 618-936 | Sumner | Landline | Frontier North |
| 618-937 | West Frankfort | Landline | Frontier North |
| 618-938 | Waterloo | Landline | Harrisonville Tel. |
| 618-939 | Waterloo | Landline | Harrisonville Tel. |
| 618-940 | Metropolis | Landline | Comcast Ip Phone |
| 618-942 | Herrin | Landline | Frontier North |
| 618-943 | Lawrenceville | Landline | Frontier North |
| 618-944 | Marion | Landline | Teleport Communications America |
| 618-945 | Bridgeport | Landline | Frontier North |
| 618-946 | Jerseyville | Wireless | New Cingular Wireless |
| 618-947 | West Liberty | Landline | Frontier North |
| 618-948 | Saint Francisville | Landline | Frontier North |
| 618-949 | Simpson | Landline | Shawnee Tel. |
| 618-952 | Johnston City | Landline | Level 3 Communications |
| 618-954 | Maryville | Wireless | New Cingular Wireless |
| 618-956 | Carterville | Landline | Delta Comms |
| 618-960 | Maryville | Wireless | Sprint Spectrum |
| 618-961 | Collinsville | Landline | Onvoy |
| 618-962 | Omaha | Landline | Frontier North |
| 618-963 | Enfield | Landline | Frontier North |
| 618-964 | Marion | Landline | Frontier North |
| 618-965 | Steeleville | Landline | Frontier North |
| 618-966 | Crossville | Landline | Crossville Tel. |
| 618-967 | Carbondale | Wireless | Verizon |
| 618-968 | New Haven | Landline | Frontier North |
| 618-969 | Marion | Landline | Delta Comms |
| 618-971 | Maryville | Wireless | New Cingular Wireless |
| 618-972 | Venice | Wireless | Verizon |
| 618-973 | Venice | Wireless | Verizon |
| 618-974 | Maryville | Wireless | New Cingular Wireless |
| 618-975 | Venice | Wireless | Verizon |
| 618-977 | Venice | Wireless | Verizon |
| 618-978 | Venice | Wireless | Verizon |
| 618-979 | Venice | Wireless | Verizon |
| 618-980 | Venice | Wireless | Verizon |
| 618-982 | Pittsburg | Landline | Frontier North |
| 618-983 | Johnston City | Landline | Frontier North |
| 618-984 | Royalton | Landline | Frontier North |
| 618-985 | Carterville | Landline | Frontier North |
| 618-987 | Royalton | Landline | Frontier North |
| 618-988 | Herrin | Landline | Frontier North |
| 618-993 | Marion | Landline | Frontier North |
| 618-994 | Carrier Mills | Landline | Frontier North |
| 618-995 | Goreville | Landline | Frontier North |
| 618-996 | Creal Springs | Landline | Frontier North |
| 618-997 | Marion | Landline | Frontier North |
| 618-998 | Marion | Landline | Frontier North |
| 618-999 | Edwardsville | Landline | Onvoy |