ILLINOIS BELL TEL CO
178 prefixes in 708 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 708-579 | LA GRANGE | 9329 | — | — |
| 708-583 | RIVERGROVE | 9329 | — | — |
| 708-588 | LA GRANGE | 9329 | — | — |
| 708-591 | CHICGOZN01 | 9329 | — | — |
| 708-594 | SUMMIT | 9329 | — | — |
| 708-596 | HARVEY | 9329 | — | — |
| 708-597 | BLUEISLAND | 9329 | — | — |
| 708-598 | OAK LAWN | 9329 | — | — |
| 708-599 | OAK LAWN | 9329 | — | — |
| 708-614 | TINLEYPARK | 9329 | — | — |
| 708-615 | MAYWOOD | 9329 | — | Yes |
| 708-633 | TINLEYPARK | 9329 | — | — |
| 708-636 | OAK LAWN | 9329 | — | — |
| 708-639 | LA GRANGE | 9329 | — | Yes |
| 708-645 | ORLAND | 9329 | — | Yes |
| 708-647 | HOMEWOOD | 9329 | — | — |
| 708-649 | BELLWOOD | 9329 | — | Yes |
| 708-652 | CICERO | 9329 | — | — |
| 708-656 | CICERO | 9329 | — | — |
| 708-660 | OAK PARK | 9329 | — | Yes |
| 708-667 | CHICGOZN03 | 9329 | — | Yes |
| 708-671 | PALOS PARK | 9329 | — | Yes |
| 708-672 | CRETE | 9329 | — | — |
| 708-679 | CHICAGOHTS | 9329 | — | Yes |
| 708-681 | MAYWOOD | 9329 | — | — |
| 708-684 | OAK LAWN | 9329 | — | — |
| 708-687 | BLUEISLAND | 9329 | — | — |
| 708-709 | CHICAGOHTS | 9329 | — | — |
| 708-720 | CHICAGOHTS | 9329 | — | — |
| 708-728 | SUMMIT | 9329 | — | Yes |
| 708-730 | CALUMET CY | 9329 | — | Yes |
| 708-747 | CHICAGOHTS | 9329 | — | — |
| 708-748 | CHICAGOHTS | 9329 | — | — |
| 708-749 | BERWYN | 9329 | — | — |
| 708-753 | CHICAGOHTS | 9329 | — | Yes |
| 708-754 | CHICAGOHTS | 9329 | — | — |
| 708-755 | CHICAGOHTS | 9329 | — | — |
| 708-756 | CHICAGOHTS | 9329 | — | — |
| 708-757 | CHICAGOHTS | 9329 | — | — |
| 708-758 | CHICAGOHTS | 9329 | — | — |
| 708-763 | OAK PARK | 9329 | — | — |
| 708-771 | FOREST | 9329 | — | — |
| 708-780 | CICERO | 9329 | — | — |
| 708-783 | WESTERNSPG | 9329 | — | — |
| 708-784 | WESTERNSPG | 9329 | — | Yes |
| 708-786 | MAYWOOD | 9329 | — | Yes |
| 708-788 | BERWYN | 9329 | — | — |
| 708-795 | BERWYN | 9329 | — | — |
| 708-798 | HOMEWOOD | 9329 | — | — |
| 708-799 | HOMEWOOD | 9329 | — | — |
| 708-802 | TINLEYPARK | 9329 | — | Yes |
| 708-824 | BLUEISLAND | 9329 | — | Yes |
| 708-832 | CALUMET CY | 9329 | — | Yes |
| 708-836 | MAYWOOD | 9329 | — | Yes |
| 708-839 | WILLOW SPG | 9329 | — | — |
| 708-841 | RIVERDALE | 9329 | — | — |
| 708-848 | OAK PARK | 9329 | — | — |
| 708-849 | RIVERDALE | 9329 | — | — |
| 708-857 | OAK LAWN | 9329 | — | Yes |
| 708-862 | CALUMET CY | 9329 | — | — |
| 708-863 | CICERO | 9329 | — | — |
| 708-865 | MAYWOOD | 9329 | — | — |
| 708-867 | CHICGOZN03 | 9329 | — | — |
| 708-868 | CALUMET CY | 9329 | — | — |
| 708-873 | ORLAND | 9329 | — | — |
| 708-877 | THORNTON | 9329 | — | Yes |
| 708-889 | LANSING | 9329 | — | Yes |
| 708-891 | CALUMET CY | 9329 | — | — |
| 708-895 | LANSING | 9329 | — | — |
| 708-915 | HARVEY | 9329 | — | Yes |
| 708-922 | HOMEWOOD | 9329 | — | — |
| 708-923 | PALOS PARK | 9329 | — | — |
| 708-924 | SUMMIT | 9329 | — | — |
| 708-946 | BEECHER | 9329 | — | Yes |
| 708-947 | MAYWOOD | 9329 | — | Yes |
| 708-952 | OAK LAWN | 9329 | — | Yes |
| 708-957 | HOMEWOOD | 9329 | — | — |
| 708-974 | PALOS PARK | 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.