FRONTIER NORTH, INC. - IL
126 prefixes in 618 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 618-243 | OKAWVILLE | 1036 | — | Yes |
| 618-248 | ALBERS | 1036 | — | Yes |
| 618-252 | HARRISBURG | 1015 | — | Yes |
| 618-253 | HARRISBURG | 1015 | — | Yes |
| 618-262 | MT CARMEL | 1015 | — | Yes |
| 618-263 | MT CARMEL | 1015 | — | Yes |
| 618-265 | NEW HAVEN | 1036 | — | Yes |
| 618-268 | RALEGHGLTI | 1036 | — | Yes |
| 618-269 | SHAWNEETN | 1015 | — | Yes |
| 618-272 | RIDGWAY | 1015 | — | Yes |
| 618-273 | ELDORADO | 1015 | — | Yes |
| 618-295 | MARISSA | 1015 | — | Yes |
| 618-298 | BELLMONT | 1015 | — | Yes |
| 618-299 | ALLENDALE | 1015 | — | Yes |
| 618-342 | VILLARIDGE | 1015 | — | Yes |
| 618-351 | CARBONDALE | 1015 | — | — |
| 618-357 | PINCKNEYVL | 1015 | — | Yes |
| 618-375 | GRAYVILLE | 1015 | — | Yes |
| 618-378 | NORRISCITY | 1036 | — | Yes |
| 618-382 | CARMI | 1015 | — | Yes |
| 618-384 | CARMI | 1015 | — | Yes |
| 618-392 | OLNEY | 1015 | — | — |
| 618-393 | OLNEY | 1015 | — | Yes |
| 618-395 | OLNEY | 1015 | — | Yes |
| 618-426 | AVA | 1015 | — | Yes |
| 618-435 | BENTON | 1015 | — | Yes |
| 618-438 | BENTON | 1015 | — | Yes |
| 618-439 | BENTON | 1015 | — | Yes |
| 618-442 | PARKERSBG | 1036 | — | Yes |
| 618-443 | SPARTA | 1015 | — | Yes |
| 618-445 | ALBION | 1015 | — | Yes |
| 618-453 | CARBONDALE | 1015 | — | — |
| 618-455 | WILLOWHILL | 1015 | — | Yes |
| 618-456 | WEST SALEM | 1036 | — | Yes |
| 618-457 | CARBONDALE | 1015 | — | — |
| 618-473 | HECKER | 1036 | — | Yes |
| 618-476 | MILLSTADT | 1036 | — | Yes |
| 618-497 | PERCY | 1015 | — | Yes |
| 618-524 | METROPOLIS | 1015 | — | Yes |
| 618-529 | CARBONDALE | 1015 | — | — |
| 618-536 | CARBONDALE | 1015 | — | — |
| 618-538 | WESTVIEW | 1036 | — | Yes |
| 618-542 | DU QUOIN | 1015 | — | Yes |
| 618-543 | JOPPA | 1015 | — | Yes |
| 618-544 | ROBINSON | 1015 | — | Yes |
| 618-546 | ROBINSON | 1015 | — | Yes |
| 618-549 | CARBONDALE | 1015 | — | — |
| 618-557 | HARDINVL | 1036 | — | Yes |
| 618-563 | HUTSONVL | 1036 | — | Yes |
| 618-564 | BROOKPORT | 1015 | — | Yes |
| 618-565 | MURPHYSBO | 1015 | — | Yes |
| 618-566 | MASCOUTAH | 1036 | — | Yes |
| 618-568 | ELKVILLE | 1015 | — | Yes |
| 618-569 | ANNAPOLIS | 1036 | — | Yes |
| 618-586 | PALESTINE | 1036 | — | Yes |
| 618-587 | TILDEN | 1015 | — | Yes |
| 618-588 | NEW BADEN | 1036 | — | Yes |
| 618-596 | ZEIGLER | 1015 | — | Yes |
| 618-625 | SESSER | 1015 | — | Yes |
| 618-627 | THOMPSONVL | 1015 | — | Yes |
| 618-629 | EWING | 1015 | — | Yes |
| 618-634 | KARNAK | 1015 | — | Yes |
| 618-643 | MCLEANSBO | 1015 | — | Yes |
| 618-651 | HIGHLAND | 1015 | — | Yes |
| 618-654 | HIGHLAND | 1015 | — | — |
| 618-657 | CYPRESS | 1015 | — | Yes |
| 618-658 | VIENNA | 1015 | — | Yes |
| 618-662 | FLORA | 1015 | — | — |
| 618-676 | CLAY CITY | 1015 | — | Yes |
| 618-677 | FAYETTEVL | 1036 | — | Yes |
| 618-683 | GOLCONDA | 1015 | — | Yes |
| 618-684 | MURPHYSBO | 1015 | — | Yes |
| 618-687 | MURPHYSBO | 1015 | — | Yes |
| 618-689 | SAILOR SPG | 1036 | — | Yes |
| 618-714 | MASCOUTAH | 1036 | 2016-10-18 | Yes |
| 618-723 | NOBLE | 1015 | — | Yes |
| 618-724 | CHRISTOPHR | 1015 | — | Yes |
| 618-743 | JOPPA | 1015 | — | — |
| 618-752 | WENDELIN | 1036 | — | Yes |
| 618-754 | DUNDAS | 1036 | — | Yes |
| 618-758 | COULTERVL | 1015 | — | Yes |
| 618-777 | STONEFORT | 1015 | — | Yes |
| 618-783 | NEWTON | 1015 | — | Yes |
| 618-793 | ROSE HILL | 1015 | — | Yes |
| 618-826 | CHESTER | 1015 | — | Yes |
| 618-827 | DONGOLA | 1015 | — | Yes |
| 618-833 | ANNA | 1015 | — | Yes |
| 618-842 | FAIRFIELD | 1015 | — | Yes |
| 618-845 | ULLIN | 1015 | — | Yes |
| 618-847 | FAIRFIELD | 1015 | — | Yes |
| 618-853 | EVANSVILLE | 1015 | — | Yes |
| 618-859 | ELLISGROVE | 1015 | — | Yes |
| 618-863 | CALHOUN | 1036 | — | Yes |
| 618-867 | DE SOTO | 1015 | — | Yes |
| 618-869 | CLAREMONT | 1015 | — | Yes |
| 618-884 | WESTPORT | 1015 | — | Yes |
| 618-893 | COBDEN | 1015 | — | Yes |
| 618-895 | WAYNE CITY | 1015 | — | Yes |
| 618-896 | BURNTPRARI | 1015 | — | Yes |
| 618-928 | BIRDS | 1036 | — | 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.