ILLINOIS BELL TEL CO
258 prefixes in 630 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 630-208 | GENEVA | 9329 | — | — |
| 630-213 | BARTLETT | 9329 | — | — |
| 630-218 | HINSDALE | 9329 | — | — |
| 630-221 | WHEATON | 9329 | — | — |
| 630-224 | NAPERVILLE | 9329 | — | — |
| 630-226 | LEMONT | 9329 | — | — |
| 630-227 | BENSENVL | 9329 | — | Yes |
| 630-230 | HINSDALE | 9329 | — | Yes |
| 630-231 | W CHICAGO | 9329 | — | — |
| 630-232 | GENEVA | 9329 | — | — |
| 630-236 | AURORA | 9329 | — | — |
| 630-238 | BENSENVL | 9329 | — | — |
| 630-241 | DOWNERSGRV | 9329 | — | — |
| 630-243 | LEMONT | 9329 | — | Yes |
| 630-245 | NAPERVILLE | 9329 | — | Yes |
| 630-250 | ITASCA | 9329 | — | — |
| 630-252 | LEMONT | 9329 | — | — |
| 630-256 | AURORA | 9329 | 2009-09-30 | Yes |
| 630-257 | LEMONT | 9329 | — | — |
| 630-260 | WHEATON | 9329 | — | — |
| 630-261 | LOMBARD | 9329 | — | Yes |
| 630-262 | GENEVA | 9329 | — | — |
| 630-264 | AURORA | 9329 | — | — |
| 630-268 | LOMBARD | 9329 | — | — |
| 630-271 | DOWNERSGRV | 9329 | — | Yes |
| 630-275 | DOWNERSGRV | 9329 | — | — |
| 630-279 | ELMHURST | 9329 | — | — |
| 630-285 | ITASCA | 9329 | — | — |
| 630-289 | BARTLETT | 9329 | — | — |
| 630-293 | W CHICAGO | 9329 | — | — |
| 630-295 | ROSELLE | 9329 | — | — |
| 630-305 | NAPERVILLE | 9329 | — | — |
| 630-307 | ROSELLE | 9329 | — | — |
| 630-312 | LEMONT | 9329 | 2007-02-15 | Yes |
| 630-314 | ROSELLE | 9329 | — | — |
| 630-321 | HINSDALE | 9329 | — | — |
| 630-322 | DOWNERSGRV | 9329 | — | — |
| 630-323 | HINSDALE | 9329 | — | — |
| 630-325 | HINSDALE | 9329 | — | — |
| 630-345 | GENEVA | 9329 | — | Yes |
| 630-350 | BENSENVL | 9329 | — | Yes |
| 630-351 | ROSELLE | 9329 | — | — |
| 630-353 | DOWNERSGRV | 9329 | — | — |
| 630-355 | NAPERVILLE | 9329 | — | — |
| 630-357 | NAPERVILLE | 9329 | — | — |
| 630-365 | ELBURN | 9329 | — | Yes |
| 630-368 | HINSDALE | 9329 | — | — |
| 630-369 | NAPERVILLE | 9329 | — | — |
| 630-372 | BARTLETT | 9329 | — | — |
| 630-375 | AURORA | 9329 | — | — |
| 630-377 | ST CHARLES | 9329 | — | — |
| 630-378 | LEMONT | 9329 | — | Yes |
| 630-381 | YORKVILLE | 9329 | 2015-01-15 | Yes |
| 630-384 | WHEATON | 9329 | — | Yes |
| 630-393 | WARRENVL | 9329 | — | Yes |
| 630-406 | BATAVIA | 9329 | — | — |
| 630-407 | WHEATON | 9329 | — | Yes |
| 630-415 | ELMHURST | 9329 | — | Yes |
| 630-416 | NAPERVILLE | 9329 | — | — |
| 630-420 | NAPERVILLE | 9329 | — | — |
| 630-424 | LOMBARD | 9329 | — | — |
| 630-427 | DOWNERSGRV | 9329 | — | Yes |
| 630-428 | NAPERVILLE | 9329 | — | — |
| 630-434 | DOWNERSGRV | 9329 | — | — |
| 630-435 | DOWNERSGRV | 9329 | — | Yes |
| 630-443 | ST CHARLES | 9329 | — | — |
| 630-444 | ST CHARLES | 9329 | — | Yes |
| 630-455 | HINSDALE | 9329 | — | Yes |
| 630-458 | ELMHURST | 9329 | — | Yes |
| 630-462 | WHEATON | 9329 | — | — |
| 630-466 | SUGARGROVE | 9329 | — | — |
| 630-467 | ITASCA | 9329 | — | Yes |
| 630-469 | GLEN ELLYN | 9329 | — | — |
| 630-472 | HINSDALE | 9329 | — | — |
| 630-482 | BATAVIA | 9329 | — | Yes |
| 630-483 | BARTLETT | 9329 | — | — |
| 630-493 | DOWNERSGRV | 9329 | — | — |
| 630-495 | LOMBARD | 9329 | — | — |
| 630-497 | ELGIN | 9329 | — | Yes |
| 630-499 | AURORA | 9329 | — | — |
| 630-505 | NAPERVILLE | 9329 | — | Yes |
| 630-510 | WHEATON | 9329 | — | — |
| 630-512 | DOWNERSGRV | 9329 | — | Yes |
| 630-513 | ST CHARLES | 9329 | — | — |
| 630-515 | DOWNERSGRV | 9329 | — | — |
| 630-516 | ELMHURST | 9329 | — | — |
| 630-521 | BENSENVL | 9329 | — | Yes |
| 630-527 | NAPERVILLE | 9329 | — | — |
| 630-529 | ROSELLE | 9329 | — | — |
| 630-530 | ELMHURST | 9329 | — | — |
| 630-537 | HINSDALE | 9329 | 2010-06-28 | Yes |
| 630-539 | ROSELLE | 9329 | — | Yes |
| 630-540 | BARTLETT | 9329 | — | Yes |
| 630-543 | ELMHURST | 9329 | — | — |
| 630-545 | GLEN ELLYN | 9329 | — | — |
| 630-548 | NAPERVILLE | 9329 | — | — |
| 630-551 | OSWEGO | 9329 | — | Yes |
| 630-552 | PLANO | 9329 | — | Yes |
| 630-553 | YORKVILLE | 9329 | — | — |
| 630-554 | OSWEGO | 9329 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.