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 |
|---|---|---|---|---|
| 618-932 | WFRANKFORT | 1015 | — | Yes |
| 618-934 | SUMMERFLD | 1036 | — | Yes |
| 618-936 | SUMNER | 1015 | — | Yes |
| 618-937 | WFRANKFORT | 1015 | — | Yes |
| 618-942 | HERRIN | 1015 | — | Yes |
| 618-943 | LAWRENCEVL | 1015 | — | Yes |
| 618-945 | BRIDGEPORT | 1015 | — | Yes |
| 618-947 | CHAUNCEY | 1036 | — | Yes |
| 618-948 | STFRNCISVL | 1015 | — | Yes |
| 618-962 | OMAHA | 1036 | — | Yes |
| 618-963 | ENFIELD | 1015 | — | Yes |
| 618-964 | MARION | 1015 | — | Yes |
| 618-965 | STEELEVL | 1015 | — | Yes |
| 618-968 | MAUNIE | 1015 | — | Yes |
| 618-982 | PAULTON | 1036 | — | Yes |
| 618-983 | JOHNSTONCY | 1015 | — | Yes |
| 618-984 | ROYALTON | 1015 | — | Yes |
| 618-985 | CARTERVL | 1015 | — | Yes |
| 618-987 | HURST | 1015 | — | Yes |
| 618-988 | HERRIN | 1015 | — | Yes |
| 618-993 | MARION | 1015 | — | — |
| 618-994 | CARRIERSML | 1015 | — | Yes |
| 618-995 | GOREVILLE | 1015 | — | Yes |
| 618-996 | CREAL SPG | 1015 | — | Yes |
| 618-997 | MARION | 1015 | — | — |
| 618-998 | MARION | 1015 | — | 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.