312 area code
| State | Illinois |
| Primary City | Chicago, IL |
| Timezone | Central |
Example of cities also covered by area code 312
Chicago, IL
Hinsdale, IL
La Grange Park, IL
Northbrook, IL
Roselle, IL
Wheeling, IL
All searches are confidential and secured!
312 area code prefixes
| 312-201 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-202 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-203 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-204 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-205 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-206 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-207 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-208 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-210 | CHICGOZN01 | AIRUS, INC. - IL |
| 312-212 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-213 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-214 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-215 | WHEELING | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-216 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-217 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-218 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-220 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-221 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-222 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-223 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-224 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-225 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-226 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-227 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-228 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-229 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-230 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-231 | ROSELLE | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-232 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-233 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-234 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-235 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-236 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-237 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-238 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-239 | CHICGOZN01 | AT&T LOCAL |
| 312-240 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-241 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-242 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-243 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-244 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-245 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-247 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-249 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-250 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-251 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-252 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-253 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-254 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-255 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-256 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-258 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-259 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-260 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-261 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-262 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-263 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-264 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-265 | CHICGOZN01 | ACCESS ONE, INC. - IL |
| 312-266 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-267 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-268 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-269 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-271 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-272 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-274 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-275 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-277 | CHICGOZN01 | ALLEGIANCE TELECOM, INC. - IL |
| 312-278 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-279 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-280 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-281 | CHICGOZN01 | GLOBAL CROSSING LOCAL SERVICES, INC.-IL |
| 312-282 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-283 | CHICGOZN01 | GLOBAL CROSSING LOCAL SERVICES, INC.-IL |
| 312-284 | CHICGOZN01 | XO ILLINOIS, INC. |
| 312-285 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-286 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-287 | CHICGOZN07 | SPRINT SPECTRUM L.P. |
| 312-288 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-289 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-290 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-291 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-293 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-294 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-295 | LA GRANGE | USA MOBILITY WIRELESS, INC. |
| 312-296 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-297 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-298 | CHICGOZN01 | SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE |
| 312-299 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-300 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-301 | HINSDALE | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-302 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-307 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-308 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-309 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-313 | CHICGOZN01 | ONVOY, LLC |
| 312-314 | HINSDALE | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-315 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-316 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-320 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-321 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-322 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-323 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-324 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-325 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-326 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-327 | CHICGOZN01 | XO ILLINOIS, INC. |
| 312-328 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-329 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-330 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-332 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-333 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-334 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-335 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-336 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-337 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-338 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-339 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-341 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-342 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-343 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-344 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-345 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-346 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-347 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-348 | CHICGOZN01 | ONVOY, LLC - IL |
| 312-349 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-350 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-351 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-353 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-355 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-356 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-357 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-358 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-359 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-360 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-361 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-362 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-363 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-364 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-365 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-366 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-367 | LA GRANGE | USA MOBILITY WIRELESS, INC. |
| 312-368 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-369 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-370 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-371 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-372 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-373 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-374 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-375 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-376 | CHICGOZN01 | CBEYOND COMMUNICATIONS, LLC - IL |
| 312-377 | CHICGOZN01 | XO ILLINOIS, INC. |
| 312-378 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-379 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-380 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-381 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-382 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-383 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-384 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-385 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-386 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-387 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-388 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-389 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-390 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-391 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-393 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-394 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-395 | CHICGOZN01 | AT&T LOCAL |
| 312-396 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-397 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-398 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-399 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-400 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-401 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-402 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-404 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-405 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-407 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-408 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-409 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-410 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-413 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-415 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-416 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-417 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-418 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-419 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-420 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-421 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-422 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-423 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-424 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-425 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-426 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-427 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-428 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-429 | CHICGOZN01 | GLOBAL CROSSING LOCAL SERVICES, INC.-IL |
| 312-430 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-431 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-432 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-433 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-434 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-435 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-436 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-437 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-438 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-440 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-441 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-442 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-443 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-444 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-445 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-446 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-447 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-449 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-450 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-451 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-452 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-453 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-454 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-455 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-456 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-457 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-458 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-460 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-461 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-462 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-463 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-464 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-465 | CHICGOZN01 | US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL |
| 312-466 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-467 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-469 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-470 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-472 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-473 | CHICGOZN01 | YMAX COMMUNICATIONS CORP. - IL |
| 312-474 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-475 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-476 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-477 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-478 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-479 | CHICGOZN01 | AT&T LOCAL |
| 312-480 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-484 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-485 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-486 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-488 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-489 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-490 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-491 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-492 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-493 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-494 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-495 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-496 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-497 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-498 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-499 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-502 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-503 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-504 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-505 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-506 | CHICGOZN01 | FIRST COMMUNICATIONS, LLC |
| 312-507 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-510 | HINSDALE | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-512 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-513 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-514 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-515 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-516 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-519 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-520 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-521 | CHICGOZN01 | AT&T LOCAL |
| 312-523 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-525 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-526 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-527 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-528 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-529 | CHICGOZN01 | AT&T LOCAL |
| 312-530 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-532 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-533 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-534 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-537 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-540 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-541 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-542 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-543 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-544 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-545 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-546 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-547 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-548 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-550 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-551 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-552 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-553 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-554 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-556 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-557 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-558 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-559 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-560 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-562 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-563 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-564 | CHICGOZN01 | FIRST COMMUNICATIONS, LLC |
| 312-565 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-566 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-567 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-568 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-569 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-570 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-571 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-572 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-573 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-574 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-575 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-576 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-577 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-578 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-580 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-582 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-583 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-587 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-588 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-589 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-590 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-591 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-592 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-593 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-595 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-596 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-597 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-599 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-601 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-602 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-603 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-604 | CHICGOZN01 | XO ILLINOIS, INC. |
| 312-605 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-606 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-607 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-608 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-609 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-610 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-612 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-613 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-614 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-615 | WHEELING | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-616 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-617 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-618 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-619 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-621 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-622 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-623 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-624 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-625 | CHICGOZN01 | LEVEL 3 COMMUNICATIONS, LLC - IL |
| 312-626 | CHICGOZN01 | ONVOY, LLC |
| 312-627 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-628 | CHICGOZN01 | XO ILLINOIS, INC. |
| 312-629 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-633 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-635 | CHICGOZN01 | GLOBAL CROSSING LOCAL SERVICES, INC.-IL |
| 312-636 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-637 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-638 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-640 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-641 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-642 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-643 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-644 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-645 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-646 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-647 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-648 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-649 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-650 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-651 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-652 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-654 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-655 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-656 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-657 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-658 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-659 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-660 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-661 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-662 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-664 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-665 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-666 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-669 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-670 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-671 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-672 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-673 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-674 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-675 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-676 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-677 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-678 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-679 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-681 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-682 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-683 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-685 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-689 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-690 | CHICGOZN01 | RCLEC, INC. - IL |
| 312-691 | CHICGOZN01 | INDIANA PAGING NTWK |
| 312-692 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-693 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-701 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-703 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-704 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-705 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-706 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-707 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-709 | CHICGOZN01 | T-MOBILE USA, INC. |
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| 312-715 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-716 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-717 | LA GRANGE | USA MOBILITY WIRELESS, INC. |
| 312-718 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-719 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-720 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-724 | CHICGOZN01 | BANDWIDTH.COM CLEC, LLC - IL |
| 312-725 | CHICGOZN01 | BANDWIDTH.COM CLEC, LLC - IL |
| 312-726 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-727 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-730 | CHICGOZN01 | AT&T LOCAL |
| 312-731 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-732 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-733 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-735 | CHICGOZN04 | SPRINT SPECTRUM L.P. |
| 312-737 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-738 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-739 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-742 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-747 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-748 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
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| 312-753 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-755 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-756 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-759 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-760 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-762 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-765 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-766 | CHICGOZN01 | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 312-768 | CHICGOZN01 | AT&T LOCAL |
| 312-769 | CHICGOZN01 | INDIANA PAGING NTWK |
| 312-770 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-771 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-772 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-775 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-777 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-780 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-781 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-782 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-784 | CHICGOZN01 | FIRST COMMUNICATIONS LLC - IL |
| 312-785 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-786 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-787 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-795 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-796 | CHICGOZN01 | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 312-797 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-798 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-799 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-802 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-803 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-804 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-805 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-806 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-807 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-808 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-810 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-812 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-813 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-814 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-817 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-818 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-819 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-820 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-821 | CHICGOZN01 | MCI WORLDCOM COMMUNICATIONS, INC. - IL |
| 312-822 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-823 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-824 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-825 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-826 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-827 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-828 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-829 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-830 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-831 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-832 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-833 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-834 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-835 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-836 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-837 | CHICGOZN01 | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL |
| 312-839 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-840 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-841 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-842 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-849 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-850 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-851 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-852 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-853 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-854 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-855 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-856 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-857 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-859 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-860 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-861 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-862 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-864 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-867 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-869 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-875 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-876 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-877 | CHICGOZN01 | AT&T CORP. |
| 312-878 | CHICGOZN01 | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 312-879 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-880 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-881 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-882 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-884 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-886 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-887 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-888 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-890 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-891 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-892 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-893 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-894 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-895 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-896 | CHICGOZN01 | BROADWING COMMUNICATIONS, LLC - IL |
| 312-897 | CHICGOZN01 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 312-898 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-899 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-901 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-902 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-903 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-904 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-905 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-906 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-907 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-908 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-909 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-910 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-912 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-913 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-915 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-916 | CHICGOZN01 | AMERICAN MESSAGING SERVICES, LLC |
| 312-917 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-919 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-920 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-921 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-922 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-923 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-924 | CHICGOZN01 | PAETEC COMMUNICATIONS, INC. - IL |
| 312-925 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-926 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-927 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-928 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-931 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-932 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-933 | CHICGOZN01 | SPRINT SPECTRUM L.P. |
| 312-934 | CHICGOZN01 | T-MOBILE USA, INC. |
| 312-935 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-936 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-938 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-939 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-940 | CHICGOZN01 | PEERLESS NETWORK OF ILLINOIS, LLC - IL |
| 312-941 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-942 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-943 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-949 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-951 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-952 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-953 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-954 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-955 | CHICGOZN01 | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL |
| 312-956 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-957 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-961 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-962 | CHICGOZN01 | GLOBAL CROSSING LOCAL SERVICES, INC.-IL |
| 312-963 | CHICGOZN01 | USA MOBILITY WIRELESS, INC. |
| 312-964 | CHICGOZN01 | ONVOY, LLC |
| 312-965 | CHICGOZN01 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
| 312-970 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-971 | CHICGOZN01 | BANDWIDTH.COM CLEC, LLC - IL |
| 312-972 | CHICGOZN01 | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 312-974 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-977 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-979 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-980 | CHICGOZN01 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
| 312-981 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-982 | CHICGOZN01 | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL |
| 312-983 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-985 | CHICGOZN01 | OVATION COMMUNICATIONS OF ILLINOIS, INC. |
| 312-986 | CHICGOZN01 | AMERITECH ILLINOIS |
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| 312-996 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-997 | CHICGOZN01 | AMERITECH ILLINOIS |
| 312-998 | CHICGOZN01 | CENTURYLINK COMMUNICATIONS LLC |