All assignees
639 prefixes in 517 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 517-955 | DANSVILLE | 543C | — | Yes |
| 517-957 | ONONDAGA | 3535 | — | — |
| 517-958 | — | — | ||
| 517-959 | — | — | ||
| 517-960 | JACKSON | 9323 | 2001-01-25 | Yes |
| 517-961 | ALBION | 3535 | 2001-02-28 | — |
| 517-962 | JACKSON | 770E | 2007-08-07 | Yes |
| 517-963 | PARMA | 3535 | 2001-11-15 | — |
| 517-964 | HILLSDALE | 3535 | 2001-10-30 | — |
| 517-965 | POTTERVL | 3535 | 2001-11-15 | — |
| 517-966 | DIMONDALE | 7157 | 2006-02-09 | Yes |
| 517-968 | DANSVILLE | 7157 | 2006-01-27 | Yes |
| 517-969 | MASON | 829J | 2006-01-12 | Yes |
| 517-970 | READING | 3535 | 2001-11-15 | — |
| 517-972 | BELL OAK | 3535 | 2002-06-18 | Yes |
| 517-973 | CHARLOTTE | 9748 | — | — |
| 517-974 | LANSING | 6534 | — | — |
| 517-975 | LANSING | 829J | 2007-10-08 | Yes |
| 517-976 | — | — | ||
| 517-977 | LANSING | 318J | 2006-08-16 | Yes |
| 517-978 | MASON | 3535 | 2002-01-21 | — |
| 517-979 | RIVES JCT | 3535 | 2001-11-15 | — |
| 517-980 | LANSING | 2964 | 2001-02-28 | Yes |
| 517-981 | VERMONTVL | 3535 | 2001-11-15 | — |
| 517-983 | CHARLOTTE | 6003 | 2004-02-24 | Yes |
| 517-984 | WEBBERVL | 3535 | 2001-11-15 | Yes |
| 517-985 | STOCKBDG | 3535 | 2001-05-02 | Yes |
| 517-988 | — | — | ||
| 517-989 | — | — | ||
| 517-990 | JACKSON | 6534 | — | Yes |
| 517-991 | CAMDEN | 3535 | 2002-06-18 | Yes |
| 517-992 | WILLIAMSTN | 2550 | 2003-02-21 | Yes |
| 517-993 | LANSING | 770E | — | Yes |
| 517-994 | PORTLAND | 3535 | — | Yes |
| 517-995 | JONESVILLE | 3535 | 2001-10-01 | Yes |
| 517-996 | WILLIAMSTN | 3535 | 2001-11-15 | Yes |
| 517-997 | CHARLOTTE | 3535 | — | Yes |
| 517-998 | JACKSON | 3535 | — | — |
| 517-999 | LANSING | 3535 | — | — |
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.