| 312-201 | Chicago | Ameritech Illinois |
| 312-202 | Chicago | Ameritech Illinois |
| 312-203 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-204 | Chicago | Ameritech Illinois |
| 312-205 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-206 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-207 | Chicago | Ameritech Illinois |
| 312-208 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-209 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-212 | Chicago | Ameritech Illinois |
| 312-213 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-214 | Chicago | Ameritech Illinois |
| 312-215 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-216 | Chicago | First Communications Llc - Il |
| 312-217 | Arlington Heights | Sprint Spectrum L.p. |
| 312-218 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-219 | Chicago | Bandwidth.com Clec, Llc - Il |
| 312-220 | Chicago | Ameritech Illinois |
| 312-221 | Arlington Heights | Sprint Spectrum L.p. |
| 312-222 | Chicago | Ameritech Illinois |
| 312-223 | Chicago | Ameritech Illinois |
| 312-224 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-225 | Chicago | Ameritech Illinois |
| 312-226 | Chicago | Ameritech Illinois |
| 312-227 | Chicago | Ameritech Illinois |
| 312-228 | Chicago | Ameritech Illinois |
| 312-229 | Chicago | Ameritech Illinois |
| 312-230 | Chicago | Ameritech Illinois |
| 312-231 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-232 | Chicago | American Messaging Services, Llc |
| 312-233 | Chicago | Ameritech Illinois |
| 312-234 | Chicago | Ameritech Illinois |
| 312-235 | Chicago | Ameritech Illinois |
| 312-236 | Chicago | Ameritech Illinois |
| 312-237 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-238 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-239 | Chicago | At&t Local |
| 312-240 | Chicago | Ameritech Illinois |
| 312-241 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-242 | Chicago | Teleport Communications America, Llc - Il |
| 312-243 | Chicago | Ameritech Illinois |
| 312-244 | Chicago | Ameritech Illinois |
| 312-245 | Chicago | Ameritech Illinois |
| 312-246 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-247 | Chicago | First Communications Llc - Il |
| 312-248 | Chicago | Metro Pcs, Inc. |
| 312-249 | Naperville | Usa Mobility Wireless, Inc. |
| 312-250 | Naperville | Usa Mobility Wireless, Inc. |
| 312-251 | Chicago | Ameritech Illinois |
| 312-252 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-253 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-254 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-255 | Chicago | Ameritech Illinois |
| 312-256 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-257 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-258 | Chicago | Ameritech Illinois |
| 312-259 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-260 | Bensenville | Mcimetro Access Transmission Services Llc |
| 312-261 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-262 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-263 | Chicago | Ameritech Illinois |
| 312-264 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-265 | Arlington Heights | Access One, Inc. - Il |
| 312-266 | Chicago | Ameritech Illinois |
| 312-267 | Chicago | Ameritech Illinois |
| 312-268 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-269 | Chicago | Ameritech Illinois |
| 312-271 | Naperville | Usa Mobility Wireless, Inc. |
| 312-272 | Naperville | Usa Mobility Wireless, Inc. |
| 312-273 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-274 | Chicago | Ameritech Illinois |
| 312-275 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-276 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-277 | Chicago | Allegiance Telecom, Inc. - Il |
| 312-278 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-279 | Bensenville | Mcimetro Access Transmission Services Llc |
| 312-280 | Chicago | Ameritech Illinois |
| 312-281 | Chicago | Global Crossing Local Services, Inc.-il |
| 312-282 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-283 | Chicago | Global Crossing Local Services, Inc.-il |
| 312-284 | Chicago | Xo Illinois, Inc. |
| 312-285 | Arlington Heights | Sprint Spectrum L.p. |
| 312-286 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-287 | Arlington Heights | Sprint Spectrum L.p. |
| 312-288 | Bensenville | Mcimetro Access Transmission Services Llc |
| 312-289 | Naperville | Usa Mobility Wireless, Inc. |
| 312-290 | Naperville | Usa Mobility Wireless, Inc. |
| 312-291 | Chicago | Ameritech Illinois |
| 312-292 | Chicago | Bandwidth.com Clec, Llc - Il |
| 312-293 | Chicago | Ameritech Illinois |
| 312-294 | Chicago | Ameritech Illinois |
| 312-295 | Naperville | Usa Mobility Wireless, Inc. |
| 312-296 | Arlington Heights | Sprint Spectrum L.p. |
| 312-297 | Chicago | Ameritech Illinois |
| 312-298 | Chicago | Sigecom, Llc Dba Wow Internet Cable And Phone |
| 312-299 | Naperville | Usa Mobility Wireless, Inc. |
| 312-300 | Chicago | Net Talk.com, Inc. - Il |
| 312-301 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-302 | Chicago | Ameritech Illinois |
| 312-303 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-304 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-305 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-306 | Chicago | Ameritech Illinois |
| 312-307 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-308 | Chicago | Ameritech Illinois |
| 312-309 | Chicago | Ameritech Illinois |
| 312-310 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-314 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-315 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-316 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-317 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-318 | Hickory Hills | Cellco Partnership Dba Verizon Wireless - Il |
| 312-320 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-321 | Chicago | Ameritech Illinois |
| 312-322 | Chicago | Ameritech Illinois |
| 312-323 | Chicago | American Messaging Services, Llc |
| 312-324 | Chicago | Level 3 Communications, Llc - Il |
| 312-325 | Chicago | Ameritech Illinois |
| 312-326 | Chicago | Ameritech Illinois |
| 312-327 | Chicago | Xo Illinois, Inc. |
| 312-328 | Chicago | Ameritech Illinois |
| 312-329 | Chicago | Ameritech Illinois |
| 312-330 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-331 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-332 | Chicago | Ameritech Illinois |
| 312-333 | Chicago | American Messaging Services, Llc |
| 312-334 | Chicago | First Communications Llc - Il |
| 312-335 | Chicago | Ameritech Illinois |
| 312-336 | Chicago | Ameritech Illinois |
| 312-337 | Chicago | Ameritech Illinois |
| 312-338 | Chicago | Ameritech Illinois |
| 312-339 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-340 | Willowbrook | T-mobile Usa, Inc. |
| 312-341 | Chicago | Ameritech Illinois |
| 312-342 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-343 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-344 | Chicago | Ameritech Illinois |
| 312-345 | Chicago | Ameritech Illinois |
| 312-346 | Chicago | Ameritech Illinois |
| 312-347 | Chicago | Ameritech Illinois |
| 312-348 | Elk Grove Village | Neutral Tandem-illinois, Llc - Il |
| 312-349 | Naperville | Usa Mobility Wireless, Inc. |
| 312-350 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-351 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-352 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-353 | Chicago | Ameritech Illinois |
| 312-354 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-355 | Chicago | Ameritech Illinois |
| 312-356 | Chicago | Ameritech Illinois |
| 312-357 | Chicago | Ameritech Illinois |
| 312-359 | Naperville | Usa Mobility Wireless, Inc. |
| 312-360 | Chicago | Ameritech Illinois |
| 312-361 | Chicago | Ameritech Illinois |
| 312-362 | Chicago | Ameritech Illinois |
| 312-363 | Chicago | Rcn Telecom Services Of Illinois, Inc. - Il |
| 312-364 | Chicago | Ameritech Illinois |
| 312-365 | Naperville | Usa Mobility Wireless, Inc. |
| 312-366 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-367 | Naperville | Usa Mobility Wireless, Inc. |
| 312-368 | Chicago | Ameritech Illinois |
| 312-369 | Chicago | New Cingular Wireless Pcs, Llc - Il |
| 312-370 | Naperville | Usa Mobility Wireless, Inc. |
| 312-371 | Arlington Heights | Sprint Spectrum L.p. |
| 312-372 | Chicago | Ameritech Illinois |
| 312-373 | Arlington Heights | Broadwing Communications, Llc - Il |
| 312-374 | Chicago | Ameritech Illinois |
| 312-375 | Chicago | T-mobile Usa, Inc. |
| 312-376 | Chicago | Cbeyond Communications, Llc - Il |
| 312-377 | Chicago | Xo Illinois, Inc. |
| 312-378 | Naperville | Usa Mobility Wireless, Inc. |
| 312-379 | Chicago | Ovation Communications Of Illinois, Inc. |
| 312-380 | Chicago | Ameritech Illinois |
| 312-382 | Chicago | Ameritech Illinois |
| 312-384 | Chicago | Ameritech Illinois |
| 312-385 | Chicago | Ameritech Illinois |
| 312-386 | Chicago | Ameritech Illinois |
| 312-387 | Naperville | Usa Mobility Wireless, Inc. |
| 312-388 | Arlington Heights | Sprint Spectrum L.p. |
| 312-389 | Naperville | Usa Mobility Wireless, Inc. |
| 312-390 | Chicago | American Messaging Services, Llc |
| 312-391 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-393 | Chicago | American Messaging Services, Llc |
| 312-394 | Chicago | Ameritech Illinois |
| 312-395 | Chicago | At&t Local |
| 312-396 | Chicago | Ameritech Illinois |
| 312-397 | Chicago | Ameritech Illinois |
| 312-398 | Naperville | Usa Mobility Wireless, Inc. |
| 312-399 | Arlington Heights | Sprint Spectrum L.p. |
| 312-400 | Chicago | American Messaging Services, Llc |
| 312-401 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-402 | Willowbrook | New Cingular Wireless Pcs, Llc - Il |
| 312-403 | Hickory Hills | Cellco Partnership Dba Verizon Wireless - Il |
| 312-404 | Chicago | T-mobile Usa, Inc. |
| 312-405 | Elgin | Cellco Partnership Dba Verizon Wireless - Il |
| 312-406 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |
| 312-407 | Chicago | Ameritech Illinois |
| 312-408 | Chicago | Ameritech Illinois |
| 312-409 | Chicago | Ameritech Illinois |
| 312-410 | Chicago | Ameritech Illinois |
| 312-412 | Schaumburg | New Cingular Wireless Pcs, Llc - Il |