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29 prefixes in 918 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 918-202 | CATOOSA | 409F | — | Yes |
| 918-205 | COLLINSVL | 409F | — | Yes |
| 918-212 | OWASSO | 409F | — | Yes |
| 918-215 | SAND SPG | 409F | — | Yes |
| 918-216 | SAPULPA | 409F | — | Yes |
| 918-217 | SKIATOOK | 409F | — | Yes |
| 918-218 | SPERRY | 409F | — | Yes |
| 918-228 | ALLUWE | 409F | — | Yes |
| 918-301 | TULSA | 409F | — | Yes |
| 918-303 | PAWNEE | 409F | — | Yes |
| 918-317 | BROKENARRW | 409F | — | Yes |
| 918-328 | RALSTON | 409F | — | Yes |
| 918-359 | TULSA | 409F | — | — |
| 918-362 | BROKENARRW | 409F | — | Yes |
| 918-393 | MULDROW | 409F | — | Yes |
| 918-398 | TULSA | 409F | — | Yes |
| 918-400 | FORTGIBSON | 409F | 2013-08-14 | Yes |
| 918-526 | TULSA | 409F | — | Yes |
| 918-556 | TULSA | 409F | — | Yes |
| 918-600 | TULSA | 409F | 2015-08-13 | Yes |
| 918-601 | NOWATA | 409F | — | Yes |
| 918-727 | TULSA | 409F | 2018-09-13 | Yes |
| 918-796 | TULSA | 409F | — | Yes |
| 918-890 | DRUMRIGHT | 409F | 2016-03-14 | Yes |
| 918-895 | TULSA | 409F | 2008-01-07 | Yes |
| 918-900 | TULSA | 409F | 2015-09-18 | Yes |
| 918-918 | BROKENARRW | 409F | 2023-12-20 | Yes |
| 918-935 | TULSA | 409F | 2009-01-12 | Yes |
| 918-999 | TULSA | 409F | — | 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.