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 |
|---|---|---|---|---|
| 630-556 | BIG ROCK | 9329 | — | Yes |
| 630-557 | KANEVILLE | 9329 | — | Yes |
| 630-562 | W CHICAGO | 9329 | — | Yes |
| 630-571 | HINSDALE | 9329 | — | — |
| 630-572 | HINSDALE | 9329 | — | — |
| 630-573 | HINSDALE | 9329 | — | — |
| 630-574 | HINSDALE | 9329 | — | Yes |
| 630-575 | HINSDALE | 9329 | — | — |
| 630-577 | NAPERVILLE | 9329 | — | Yes |
| 630-579 | NAPERVILLE | 9329 | — | — |
| 630-582 | ROSELLE | 9329 | — | — |
| 630-584 | ST CHARLES | 9329 | — | — |
| 630-585 | AURORA | 9329 | — | — |
| 630-586 | HINSDALE | 9329 | — | Yes |
| 630-587 | ST CHARLES | 9329 | — | — |
| 630-588 | WHEATON | 9329 | — | — |
| 630-591 | CHICGOZN01 | 9329 | — | — |
| 630-595 | BENSENVL | 9329 | — | — |
| 630-603 | ROSELLE | 9329 | — | — |
| 630-612 | ROSELLE | 9329 | — | — |
| 630-616 | BENSENVL | 9329 | — | — |
| 630-617 | ELMHURST | 9329 | — | Yes |
| 630-620 | LOMBARD | 9329 | — | — |
| 630-623 | HINSDALE | 9329 | — | Yes |
| 630-627 | LOMBARD | 9329 | — | — |
| 630-628 | ELMHURST | 9329 | — | — |
| 630-629 | LOMBARD | 9329 | — | — |
| 630-637 | NAPERVILLE | 9329 | — | — |
| 630-645 | HINSDALE | 9329 | — | — |
| 630-646 | NAPERVILLE | 9329 | — | Yes |
| 630-649 | NAPERVILLE | 9329 | — | Yes |
| 630-652 | LOMBARD | 9329 | — | Yes |
| 630-653 | WHEATON | 9329 | — | — |
| 630-654 | HINSDALE | 9329 | — | — |
| 630-655 | HINSDALE | 9329 | — | — |
| 630-662 | WESTERNSPG | 9329 | — | Yes |
| 630-663 | DOWNERSGRV | 9329 | — | — |
| 630-665 | WHEATON | 9329 | — | — |
| 630-668 | WHEATON | 9329 | — | — |
| 630-671 | ROSELLE | 9329 | — | Yes |
| 630-678 | LOMBARD | 9329 | — | Yes |
| 630-679 | LEMONT | 9329 | — | — |
| 630-681 | WHEATON | 9329 | — | — |
| 630-682 | WHEATON | 9329 | — | — |
| 630-684 | HINSDALE | 9329 | — | — |
| 630-690 | WHEATON | 9329 | — | — |
| 630-691 | LOMBARD | 9329 | — | — |
| 630-692 | AURORA | 9329 | — | Yes |
| 630-693 | LOMBARD | 9329 | — | — |
| 630-694 | BENSENVL | 9329 | — | — |
| 630-705 | LOMBARD | 9329 | — | — |
| 630-706 | HINSDALE | 9329 | — | Yes |
| 630-713 | NAPERVILLE | 9329 | — | — |
| 630-717 | NAPERVILLE | 9329 | — | — |
| 630-718 | NAPERVILLE | 9329 | — | — |
| 630-719 | DOWNERSGRV | 9329 | — | — |
| 630-722 | HINSDALE | 9329 | — | — |
| 630-724 | DOWNERSGRV | 9329 | — | Yes |
| 630-725 | DOWNERSGRV | 9329 | — | Yes |
| 630-734 | HINSDALE | 9329 | — | — |
| 630-736 | BARTLETT | 9329 | — | — |
| 630-737 | DOWNERSGRV | 9329 | — | Yes |
| 630-739 | LEMONT | 9329 | — | — |
| 630-752 | WHEATON | 9329 | — | — |
| 630-753 | NAPERVILLE | 9329 | — | — |
| 630-758 | ELMHURST | 9329 | — | — |
| 630-759 | LEMONT | 9329 | — | — |
| 630-761 | BATAVIA | 9329 | — | Yes |
| 630-762 | ST CHARLES | 9329 | — | — |
| 630-766 | BENSENVL | 9329 | — | — |
| 630-769 | DOWNERSGRV | 9329 | — | — |
| 630-771 | LEMONT | 9329 | — | Yes |
| 630-773 | ITASCA | 9329 | — | — |
| 630-775 | ITASCA | 9329 | — | Yes |
| 630-778 | NAPERVILLE | 9329 | — | — |
| 630-782 | ELMHURST | 9329 | — | — |
| 630-783 | LEMONT | 9329 | — | — |
| 630-784 | WHEATON | 9329 | — | — |
| 630-787 | BENSENVL | 9329 | — | — |
| 630-789 | HINSDALE | 9329 | — | — |
| 630-790 | GLEN ELLYN | 9329 | — | — |
| 630-792 | LOMBARD | 9329 | — | Yes |
| 630-794 | HINSDALE | 9329 | — | — |
| 630-795 | DOWNERSGRV | 9329 | — | Yes |
| 630-798 | NAPERVILLE | 9329 | — | — |
| 630-799 | NAPERVILLE | 9329 | — | — |
| 630-801 | AURORA | 9329 | — | — |
| 630-810 | DOWNERSGRV | 9329 | — | — |
| 630-813 | NAPERVILLE | 9329 | 2002-12-10 | Yes |
| 630-820 | AURORA | 9329 | — | — |
| 630-829 | DOWNERSGRV | 9329 | — | — |
| 630-830 | BARTLETT | 9329 | — | — |
| 630-832 | ELMHURST | 9329 | — | — |
| 630-833 | ELMHURST | 9329 | — | — |
| 630-834 | ELMHURST | 9329 | — | — |
| 630-836 | WARRENVL | 9329 | — | — |
| 630-837 | BARTLETT | 9329 | — | — |
| 630-844 | AURORA | 9329 | — | — |
| 630-845 | GENEVA | 9329 | — | — |
| 630-848 | NAPERVILLE | 9329 | — | Yes |
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.