CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL
35 prefixes in 309 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 309-227 | CORDOVA | 1183 | — | — |
| 309-374 | KEITHSBURG | 1183 | — | Yes |
| 309-426 | ROSEVILLE | 1183 | — | — |
| 309-457 | MONMOUTH | 1183 | — | — |
| 309-462 | ABINGDON | 1183 | — | — |
| 309-464 | NOHENDERSN | 1183 | — | Yes |
| 309-476 | ANDOVER | 1183 | — | — |
| 309-482 | ALEXIS | 1183 | — | — |
| 309-486 | LONDON ML | 1183 | — | — |
| 309-496 | HAMPTON | 1183 | — | — |
| 309-513 | ALEDO | 1183 | 2016-10-28 | Yes |
| 309-523 | PORT BYRON | 1183 | — | — |
| 309-529 | ALPHA | 1183 | — | Yes |
| 309-534 | PREEMPTION | 1183 | — | — |
| 309-537 | ELIZA | 1183 | — | Yes |
| 309-538 | KILBOURNE | 1183 | — | — |
| 309-546 | BATH | 1183 | — | — |
| 309-582 | ALEDO | 1183 | — | Yes |
| 309-584 | JOY | 1183 | — | Yes |
| 309-586 | SEATON | 1183 | — | Yes |
| 309-587 | NEW BOSTON | 1183 | — | Yes |
| 309-593 | SHERRARD | 1183 | — | — |
| 309-627 | BIGGSVILLE | 1183 | — | Yes |
| 309-654 | CORDOVA | 1183 | — | — |
| 309-658 | HILLSDALE | 1183 | — | — |
| 309-659 | ERIE | 1183 | — | — |
| 309-729 | LITTLEYORK | 1183 | — | Yes |
| 309-734 | MONMOUTH | 1183 | — | — |
| 309-754 | MATHERVL | 1183 | — | — |
| 309-768 | KIRKWOOD | 1183 | — | — |
| 309-867 | OQUAWKA | 1183 | — | — |
| 309-872 | RIO | 1183 | — | Yes |
| 309-873 | GULFPORT | 1183 | — | Yes |
| 309-887 | ALBANY | 1183 | — | — |
| 309-924 | STRONGHST | 1183 | — | — |
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.