All assignees
759 prefixes in 605 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 605-713 | ABERDEEN | 6569 | 2025-03-14 | Yes |
| 605-715 | ABERDEEN | 815E | 2007-03-09 | Yes |
| 605-716 | RAPID CITY | 4256 | 2001-11-28 | — |
| 605-717 | SPEARFISH | 4256 | 2001-07-06 | — |
| 605-718 | RAPID CITY | 4256 | 2001-02-22 | — |
| 605-719 | RAPID CITY | 4256 | — | — |
| 605-720 | STURGIS | 4256 | — | — |
| 605-721 | RAPID CITY | 4256 | — | — |
| 605-722 | SPEARFISH | 4256 | — | — |
| 605-723 | BELLEFORCH | 4256 | — | — |
| 605-724 | ARMOUR | 1640 | — | — |
| 605-725 | ABERDEEN | 6125 | — | — |
| 605-726 | ACADEMY | 1670 | — | — |
| 605-727 | RAPID CITY | 9631 | — | — |
| 605-728 | SIOUX FLS | 6701 | — | — |
| 605-729 | BRIDGEWTR | 1640 | — | — |
| 605-730 | CHAMBERLAN | 6534 | — | Yes |
| 605-731 | SIOUX FLS | 9631 | — | Yes |
| 605-732 | STICKNEY | 1670 | — | — |
| 605-733 | LAPLANT | 1647 | — | — |
| 605-734 | CHAMBERLAN | 9631 | — | Yes |
| 605-735 | SO FORMAN | 1611 | — | — |
| 605-736 | BROOKINGS | 6701 | 2021-01-15 | Yes |
| 605-737 | RAPID CITY | 9631 | — | — |
| 605-738 | VEBLEN | 1674 | — | — |
| 605-739 | FAITH | 1659 | — | — |
| 605-740 | SIOUX FLS | 508J | 2017-03-30 | Yes |
| 605-741 | VERMILLION | 829J | 2001-02-26 | Yes |
| 605-742 | SISSETON | 1680 | — | — |
| 605-743 | HARISBGTEA | 9631 | — | Yes |
| 605-744 | LENNOX | 6534 | 2011-03-15 | Yes |
| 605-745 | HOTSPRINGS | 1659 | — | — |
| 605-746 | PLATTE | 516J | 2022-01-10 | Yes |
| 605-747 | ROSEBUD | 1686 | — | — |
| 605-748 | MAURINE | 1659 | — | — |
| 605-749 | ENEWCASTLE | 3410 | — | — |
| 605-750 | LENNOX | 6534 | 2003-09-30 | Yes |
| 605-751 | BERESFORD | 5562 | — | Yes |
| 605-752 | FTTHOMPSON | 516J | 2022-01-13 | Yes |
| 605-753 | WATERTOWN | 7024 | — | — |
| 605-754 | NEWUNDERWD | 1659 | — | — |
| 605-755 | RAPID CITY | 4256 | 2011-02-21 | Yes |
| 605-756 | SOUTHSHORE | 1651 | — | — |
| 605-757 | VALLEY SPG | 280D | — | — |
| 605-758 | FLORENCE | 1651 | — | — |
| 605-759 | SIOUX FLS | 6569 | — | Yes |
| 605-760 | YANKTON | 6569 | — | Yes |
| 605-761 | ELK POINT | 7024 | — | — |
| 605-762 | GLENHAM | 1685 | — | — |
| 605-763 | BERESFORD | 1649 | — | — |
| 605-764 | CANTON | 7024 | — | — |
| 605-765 | GETTYSBURG | 1680 | — | — |
| 605-766 | VIBORG | 7024 | — | — |
| 605-767 | HARISBGTEA | 7024 | — | — |
| 605-768 | LEBANON | 1680 | — | — |
| 605-769 | GETTYSBURG | 6569 | — | Yes |
| 605-770 | MITCHELL | 6534 | — | — |
| 605-771 | GETTYSBURG | 6569 | — | Yes |
| 605-772 | HOWARD | 1657 | — | — |
| 605-773 | PIERRE | 9631 | — | — |
| 605-774 | SIOUX FLS | 179J | 2020-01-17 | Yes |
| 605-775 | BURKE | 1686 | — | — |
| 605-776 | PIERRE | 9631 | — | Yes |
| 605-777 | HARISBGTEA | 106F | 2015-06-02 | Yes |
| 605-778 | KIMBALL | 1670 | — | — |
| 605-779 | DELMONT | 1670 | — | — |
| 605-780 | NOSIOUX CY | 7010 | — | — |
| 605-781 | KYLE | 870F | 2011-05-26 | — |
| 605-782 | SIOUX FLS | 9631 | — | Yes |
| 605-783 | HAYTI | 1651 | — | — |
| 605-784 | BRADLEY | 1651 | — | — |
| 605-785 | LAKENORDEN | 1651 | — | — |
| 605-786 | RAPID CITY | 9631 | — | Yes |
| 605-787 | RAPID CITY | 9631 | — | Yes |
| 605-788 | MEADOW | 1689 | — | — |
| 605-789 | SIOUX FLS | 6534 | 2010-07-12 | Yes |
| 605-790 | SIOUX FLS | 6534 | 2026-04-23 | Yes |
| 605-791 | RAPID CITY | 7076 | 2006-04-13 | — |
| 605-792 | HAYTI | 920F | 2010-08-04 | Yes |
| 605-793 | CASTLEWOOD | 1651 | — | — |
| 605-794 | TORONTO | 1651 | — | — |
| 605-795 | GOODWIN | 1651 | — | — |
| 605-796 | WOONSOCKET | 1676 | — | — |
| 605-797 | CAMP CROOK | 1689 | — | — |
| 605-798 | WICKSVILLE | 1659 | — | — |
| 605-799 | SIOUX FLS | 580H | 2015-08-24 | Yes |
| 605-800 | SIOUX FLS | 145J | 2018-12-11 | Yes |
| 605-801 | BELLEFORCH | 6569 | 2021-08-17 | Yes |
| 605-804 | CASTLEWOOD | 6569 | 2017-04-07 | Yes |
| 605-805 | PIERRE | 5562 | 2021-09-24 | Yes |
| 605-808 | REDFIELD | 162G | 2021-07-16 | Yes |
| 605-809 | SIOUX FLS | 732J | — | Yes |
| 605-811 | XXXXXXXXXX | MULT | — | — |
| 605-812 | SIOUX FLS | 490J | 2021-06-11 | Yes |
| 605-815 | CHAMBERLAN | 580H | 2019-05-07 | Yes |
| 605-818 | WATERTOWN | 683C | 2006-10-10 | — |
| 605-820 | HURON | 939H | 2023-04-03 | Yes |
| 605-821 | DUPREE | 6534 | 2010-11-11 | Yes |
| 605-822 | NORTH CODY | 1577 | — | — |
| 605-823 | MOBRIDGE | 4414 | — | — |
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.