All assignees
639 prefixes in 517 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 517-679 | LANSING | 2550 | 2002-08-12 | — |
| 517-680 | ALBION | 460K | — | Yes |
| 517-682 | BLISSFIELD | 2550 | 2001-11-01 | Yes |
| 517-684 | NAPOLEON | 3535 | 2002-07-22 | Yes |
| 517-686 | ALBION | 543C | 2002-05-09 | Yes |
| 517-688 | BUNDY HILL | 4417 | — | — |
| 517-689 | HILLSDALE | 817J | 2001-11-13 | — |
| 517-691 | SHAFTSBURG | 3535 | 2002-06-18 | — |
| 517-692 | SPRINGPORT | 3535 | 2002-06-18 | Yes |
| 517-694 | HOLT | 9323 | — | — |
| 517-695 | RANSOM | 3535 | 2002-06-18 | Yes |
| 517-696 | PRATTVILLE | 3535 | 2002-06-18 | Yes |
| 517-697 | PERRY | 993L | 2002-06-18 | Yes |
| 517-698 | NORTHADAMS | 3535 | 2002-06-18 | Yes |
| 517-699 | HOLT | 9323 | — | Yes |
| 517-700 | — | — | ||
| 517-701 | CLINTON | 2550 | 2005-12-07 | Yes |
| 517-702 | LANSING | 9323 | — | Yes |
| 517-703 | LANSING | 9323 | — | Yes |
| 517-705 | BURLINGTON | 6120 | 2001-11-16 | Yes |
| 517-706 | LANSING | 9323 | — | Yes |
| 517-708 | LANSING | 9245 | 2006-07-19 | Yes |
| 517-709 | HOLT | 7157 | 2006-03-02 | Yes |
| 517-710 | STOCKBDG | 817J | 2002-04-22 | — |
| 517-711 | XXXXXXXXXX | MULT | — | — |
| 517-712 | LANSING | 2964 | 2001-06-27 | Yes |
| 517-714 | BURLINGTON | 6120 | 2002-08-19 | Yes |
| 517-715 | FOWLERVL | 543C | 2010-12-23 | Yes |
| 517-716 | PARMA | 817J | 2002-03-27 | — |
| 517-717 | WILLIAMSTN | 817J | 2001-12-05 | — |
| 517-719 | LANSING | 2964 | — | Yes |
| 517-721 | LANSING | 9323 | 2002-03-19 | Yes |
| 517-722 | MASON | 7157 | 2017-10-24 | Yes |
| 517-724 | HOMER | 817J | 2002-03-27 | — |
| 517-726 | VERMONTVL | 9323 | — | Yes |
| 517-727 | CHARLOTTE | 817J | 2001-11-01 | — |
| 517-728 | TEKONSHA | 6120 | 2001-12-27 | Yes |
| 517-730 | LANSING | 197D | 2018-03-09 | Yes |
| 517-731 | GRANDLEDGE | 6120 | 2009-11-16 | Yes |
| 517-732 | PORTLAND | 2550 | 2002-08-12 | Yes |
| 517-733 | ADDISON | 516J | 2022-02-22 | Yes |
| 517-734 | — | — | ||
| 517-736 | COLDWATER | 2550 | 2001-12-27 | Yes |
| 517-740 | JACKSON | 6003 | — | — |
| 517-741 | UNION CITY | 0695 | — | Yes |
| 517-742 | HOLT | 516C | 2008-09-02 | Yes |
| 517-743 | PORTLAND | 6120 | 2001-10-22 | Yes |
| 517-744 | LANSING | 622J | 2021-09-17 | Yes |
| 517-745 | JACKSON | 6003 | — | — |
| 517-746 | COLDWATER | 516J | 2022-02-28 | Yes |
| 517-748 | JACKSON | 516C | — | Yes |
| 517-749 | LANSING | 2964 | — | Yes |
| 517-750 | JACKSON | 9323 | — | Yes |
| 517-753 | COLDWATER | 817J | 2001-11-13 | — |
| 517-755 | LANSING | 6534 | 2005-09-22 | Yes |
| 517-756 | UNION CITY | 6120 | 2002-08-19 | Yes |
| 517-758 | HOLT | 965H | 2019-11-25 | Yes |
| 517-759 | ADRIAN | 6003 | 2002-09-18 | Yes |
| 517-760 | NASHVILLE | 3535 | — | Yes |
| 517-762 | DANSVILLE | 2550 | 2002-08-12 | — |
| 517-763 | LANSING | 9323 | — | Yes |
| 517-764 | JACKSON | 9323 | — | Yes |
| 517-765 | BURLINGTON | 0681 | — | Yes |
| 517-766 | ONONDAGA | 817J | 2001-12-05 | — |
| 517-767 | TEKONSHA | 0681 | — | Yes |
| 517-768 | JACKSON | 9323 | — | — |
| 517-769 | JACKSON | 9323 | — | Yes |
| 517-770 | LANSING | 939H | 2021-04-08 | Yes |
| 517-772 | DANSVILLE | 817J | 2001-11-13 | — |
| 517-774 | COLDWTR LK | 6120 | 2002-08-19 | Yes |
| 517-775 | LANSING | 6534 | 2002-01-30 | — |
| 517-777 | HOLT | 543C | 2015-08-18 | Yes |
| 517-780 | JACKSON | 9323 | — | — |
| 517-781 | COLDWATER | 6120 | 2002-08-19 | Yes |
| 517-782 | JACKSON | 9323 | — | — |
| 517-783 | JACKSON | 9323 | — | — |
| 517-784 | JACKSON | 9323 | — | — |
| 517-785 | ONONDAGA | 2550 | 2002-08-12 | — |
| 517-786 | CHARLOTTE | 965H | 2021-03-31 | Yes |
| 517-787 | JACKSON | 9323 | — | — |
| 517-788 | JACKSON | 9323 | — | — |
| 517-789 | JACKSON | 9323 | — | — |
| 517-790 | MOSHERVL | 3535 | 2002-06-18 | Yes |
| 517-792 | MONTGOMERY | 3535 | 2002-06-18 | — |
| 517-793 | LITCHFIELD | 3535 | 2002-06-18 | Yes |
| 517-794 | LANSING | 9748 | — | — |
| 517-795 | JACKSON | 2964 | 2002-04-22 | Yes |
| 517-796 | JACKSON | 9323 | — | Yes |
| 517-797 | HILLSDALE | 829J | 2001-10-22 | Yes |
| 517-798 | HOWELL | 2964 | 2010-08-06 | Yes |
| 517-800 | JACKSON | 965H | 2019-09-12 | Yes |
| 517-802 | LANSING | 9323 | 2007-07-03 | Yes |
| 517-803 | LANSING | 6120 | 2002-05-14 | Yes |
| 517-804 | FOWLERVL | 9748 | — | — |
| 517-809 | TECUMSEH | 817J | — | — |
| 517-810 | — | — | ||
| 517-811 | XXXXXXXXXX | MULT | — | — |
| 517-812 | JACKSON | 2964 | — | Yes |
| 517-813 | BLISSFIELD | 817J | — | — |
| 517-815 | TECUMSEH | 0695 | — | 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.