All assignees
295 prefixes in 228 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 228-567 | PASCAGOULA | 829J | 2005-01-14 | Yes |
| 228-574 | GULFPORT | 7421 | — | Yes |
| 228-575 | GULFPORT | 9419 | — | Yes |
| 228-586 | PASSCHRSTN | 9419 | — | Yes |
| 228-587 | PASSCHRSTN | 806K | 2025-09-22 | Yes |
| 228-588 | HURLEY | 9419 | — | Yes |
| 228-591 | VANCLEAVE | 5178 | 2002-03-04 | Yes |
| 228-594 | BILOXI | 9419 | — | Yes |
| 228-596 | GULFPORT | 6214 | — | — |
| 228-600 | TANNERWLMS | 624H | 2021-10-13 | Yes |
| 228-601 | — | — | ||
| 228-604 | GULFPORT | 9419 | — | Yes |
| 228-609 | GULFPORT | 6396 | — | Yes |
| 228-611 | XXXXXXXXXX | MULT | — | — |
| 228-617 | GULFPORT | 6916 | — | Yes |
| 228-623 | PASCAGOULA | 6214 | — | — |
| 228-627 | PASCAGOULA | 6214 | — | Yes |
| 228-641 | TANNERWLMS | 9419 | — | Yes |
| 228-662 | — | — | ||
| 228-666 | MOSS POINT | 965H | 2019-01-22 | Yes |
| 228-669 | GULFPORT | 6581 | — | — |
| 228-671 | BAYSTLOUIS | 5562 | 2002-04-29 | Yes |
| 228-678 | GULFPORT | 829J | 2005-01-14 | Yes |
| 228-679 | GULFPORT | 829J | — | Yes |
| 228-687 | GULFPORT | 5278 | 2007-07-18 | Yes |
| 228-688 | BAYSTLOUIS | 9419 | — | Yes |
| 228-689 | BAYSTLOUIS | 9419 | — | Yes |
| 228-696 | PASCAGOULA | 9419 | — | Yes |
| 228-697 | BILOXI | 6581 | — | — |
| 228-700 | — | — | ||
| 228-701 | GULFPORT | 829J | — | — |
| 228-702 | BILOXI | 829J | — | — |
| 228-707 | PEARLINGTN | 829J | 2005-04-26 | Yes |
| 228-711 | XXXXXXXXXX | MULT | — | — |
| 228-712 | PASCAGOULA | 9419 | — | Yes |
| 228-731 | GULFPORT | 6214 | — | Yes |
| 228-760 | GULFPORT | 6396 | — | Yes |
| 228-761 | PASCAGOULA | 719E | — | Yes |
| 228-762 | PASCAGOULA | 9419 | — | — |
| 228-769 | PASCAGOULA | 9419 | — | Yes |
| 228-777 | GULFPORT | 6396 | 2005-05-18 | — |
| 228-797 | BAYSTLOUIS | 829J | — | Yes |
| 228-800 | OCEAN SPG | 965H | 2019-01-22 | Yes |
| 228-806 | BILOXI | 6214 | — | — |
| 228-808 | GULFPORT | 6630 | — | — |
| 228-809 | PASCAGOULA | 9419 | — | Yes |
| 228-811 | XXXXXXXXXX | MULT | — | — |
| 228-813 | BAYSTLOUIS | 9419 | — | Yes |
| 228-818 | OCEAN SPG | 9419 | — | Yes |
| 228-819 | OCEAN SPG | 9419 | 2001-03-28 | Yes |
| 228-820 | HURLEY | 939H | 2023-03-31 | Yes |
| 228-822 | GULFPORT | 9419 | — | Yes |
| 228-826 | VANCLEAVE | 9419 | — | Yes |
| 228-828 | BILOXI | 624H | 2022-06-14 | Yes |
| 228-831 | GULFPORT | 9419 | — | — |
| 228-832 | GULFPORT | 9419 | — | — |
| 228-837 | HURLEY | 516J | 2022-01-12 | Yes |
| 228-850 | GULFPORT | 6630 | — | — |
| 228-853 | VANCLEAVE | 516J | 2021-01-07 | Yes |
| 228-860 | BILOXI | 6581 | — | — |
| 228-861 | BILOXI | 6581 | — | — |
| 228-863 | GULFPORT | 9419 | — | — |
| 228-864 | GULFPORT | 9419 | — | — |
| 228-865 | GULFPORT | 9419 | — | Yes |
| 228-867 | GULFPORT | 9419 | — | Yes |
| 228-868 | GULFPORT | 9419 | — | — |
| 228-870 | GULFPORT | 9419 | — | Yes |
| 228-871 | GULFPORT | 9419 | — | Yes |
| 228-872 | OCEAN SPG | 9419 | — | — |
| 228-875 | OCEAN SPG | 9419 | — | — |
| 228-880 | GULFPORT | 6630 | — | — |
| 228-888 | PEARLINGTN | 073H | 2017-02-24 | Yes |
| 228-895 | BILOXI | 506J | 2022-01-20 | Yes |
| 228-896 | GULFPORT | 9419 | — | — |
| 228-897 | GULFPORT | 9419 | — | Yes |
| 228-900 | TANNERWLMS | 719E | 2017-04-21 | Yes |
| 228-901 | HURLEY | 829J | 2005-04-26 | Yes |
| 228-910 | BILOXI | 719E | 2021-04-23 | Yes |
| 228-911 | XXXXXXXXXX | MULT | — | — |
| 228-918 | GULFPORT | 6916 | — | Yes |
| 228-933 | PASCAGOULA | 9419 | 2003-03-25 | Yes |
| 228-934 | PASCAGOULA | 9419 | — | Yes |
| 228-935 | PASCAGOULA | 9419 | — | — |
| 228-938 | PASCAGOULA | 9419 | — | Yes |
| 228-950 | — | — | ||
| 228-958 | — | — | ||
| 228-959 | — | — | ||
| 228-967 | BILOXI | 516C | 2010-01-07 | Yes |
| 228-976 | — | — | ||
| 228-985 | — | — | ||
| 228-988 | — | — | ||
| 228-990 | PASCAGOULA | 6581 | — | — |
| 228-993 | GULFPORT | 9419 | — | — |
| 228-994 | PASCAGOULA | 9419 | — | — |
| 228-999 | BILOXI | 145J | 2019-01-16 | 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.