All assignees
605 prefixes in 641 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 641-683 | OTTUMWA | 9631 | — | — |
| 641-684 | OTTUMWA | 9631 | — | — |
| 641-688 | TINGLEY | 965H | 2020-07-21 | Yes |
| 641-690 | MACKSBURG | 624H | 2024-05-20 | Yes |
| 641-691 | MARSHALLTN | 6534 | 2001-07-11 | Yes |
| 641-692 | ALEXANDER | 1127 | — | — |
| 641-693 | LIBERTYVL | 1178 | — | Yes |
| 641-696 | PLYMOUTH | 1177 | — | — |
| 641-700 | XXXXXXXXXX | MULT | — | — |
| 641-705 | ELMA | 751F | — | Yes |
| 641-706 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-710 | STACYVILLE | 3620 | — | Yes |
| 641-711 | XXXXXXXXXX | MULT | — | — |
| 641-712 | — | — | ||
| 641-713 | ST ANSGAR | 3620 | — | Yes |
| 641-714 | LE GRAND | 624H | 2024-02-09 | Yes |
| 641-715 | CHARLES CY | 221F | 2005-05-13 | Yes |
| 641-717 | COULTER | 221F | — | Yes |
| 641-718 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-719 | CLEMONS | 6534 | 2021-07-19 | — |
| 641-722 | DRAKESVL | 1129 | — | — |
| 641-724 | MORAVIA | 1178 | — | Yes |
| 641-726 | MELROSE | 1170 | — | Yes |
| 641-727 | BLAKESBURG | 516J | 2022-03-04 | Yes |
| 641-728 | PERU | 1178 | — | Yes |
| 641-729 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-732 | OSAGE | 9631 | — | Yes |
| 641-734 | DIAGONAL | 1178 | — | Yes |
| 641-735 | BUFFALOCTR | 751F | 2007-02-14 | Yes |
| 641-736 | ST ANSGAR | 1167 | — | Yes |
| 641-737 | STACYVILLE | 1167 | — | Yes |
| 641-739 | NEW HAVEN | 1177 | 2006-10-16 | — |
| 641-740 | CASEY | 6570 | — | Yes |
| 641-741 | KILLDUFF | 747C | — | — |
| 641-742 | ADAIR | 1170 | — | Yes |
| 641-743 | GREENFIELD | 1170 | — | Yes |
| 641-744 | LINDEN | 1167 | — | Yes |
| 641-745 | FONTANELLE | 1170 | — | Yes |
| 641-746 | CASEY | 1119 | — | — |
| 641-747 | GUTHRIECTR | 1170 | — | Yes |
| 641-748 | GRAFTON | 1337 | — | — |
| 641-749 | NORA SPG | 1172 | — | — |
| 641-750 | MARSHALLTN | 6570 | — | — |
| 641-751 | MARSHALLTN | 6266 | — | Yes |
| 641-752 | MARSHALLTN | 9631 | 2001-04-24 | — |
| 641-753 | MARSHALLTN | 9631 | 2001-04-24 | — |
| 641-754 | MARSHALLTN | 9631 | 2001-04-24 | — |
| 641-755 | PANORA | 1271 | — | — |
| 641-756 | ROCKFORD | 1172 | — | — |
| 641-757 | PANORA | 6570 | — | Yes |
| 641-758 | MARSHALLTN | 346F | 2009-02-05 | Yes |
| 641-760 | MINGO | 624H | 2024-05-20 | Yes |
| 641-762 | KANAWHA | 1262 | — | — |
| 641-763 | LORIMOR | 1094 | — | — |
| 641-764 | MARTENSDL | 1178 | — | Yes |
| 641-765 | TRURO | 1209 | — | — |
| 641-766 | LUCAS | 1178 | — | Yes |
| 641-767 | REDDING | 1178 | — | Yes |
| 641-768 | MACKSBURG | 1178 | — | Yes |
| 641-770 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-772 | TINGLEY | 1178 | — | Yes |
| 641-773 | GRANDRIVER | 1888 | — | Yes |
| 641-774 | CHARITON | 1178 | — | — |
| 641-775 | BRISTOW | 1282 | — | — |
| 641-776 | CHARITON | 516J | 2022-03-25 | Yes |
| 641-777 | OTTUMWA | 6266 | — | Yes |
| 641-780 | PELLA | 6266 | — | Yes |
| 641-781 | NEWTON | 6529 | — | Yes |
| 641-782 | CRESTON | 1167 | — | — |
| 641-783 | KELLERTON | 1178 | — | Yes |
| 641-784 | LAMONI | 1888 | — | Yes |
| 641-785 | BENTON | 1178 | — | Yes |
| 641-787 | NEWTON | 1170 | — | Yes |
| 641-788 | BLOCKTON | 1888 | — | Yes |
| 641-790 | SIGOURNEY | 6570 | — | Yes |
| 641-791 | NEWTON | 1170 | — | — |
| 641-792 | NEWTON | 1170 | — | — |
| 641-793 | REASNOR | 739D | — | — |
| 641-794 | DOUGHERTY | 1282 | — | — |
| 641-795 | LTL CEDAR | 1177 | 2006-05-01 | — |
| 641-796 | REASNOR | 739D | 2021-04-27 | Yes |
| 641-797 | FERTILE | 1337 | — | — |
| 641-798 | KILLDUFF | 747C | — | — |
| 641-799 | OTTUMWA | 6266 | — | Yes |
| 641-800 | ACKLEY | 221F | 2018-02-16 | Yes |
| 641-801 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-802 | HAMPTON | 515J | 2025-08-27 | Yes |
| 641-808 | COLO | 6529 | 2018-03-06 | Yes |
| 641-810 | OSKALOOSA | 515J | 2025-08-27 | Yes |
| 641-811 | XXXXXXXXXX | MULT | — | — |
| 641-812 | HAMPTON | 751F | 2010-03-10 | Yes |
| 641-814 | OTTUMWA | 2842 | — | Yes |
| 641-816 | GREENE | 3620 | — | Yes |
| 641-818 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-819 | FAIRFIELD | 1170 | 2015-06-25 | Yes |
| 641-820 | KNOXVILLE | 6570 | — | Yes |
| 641-821 | GRINNELL | 5562 | — | Yes |
| 641-822 | ROCKWELL | 1282 | — | — |
| 641-823 | GREENE | 1170 | — | Yes |
| 641-825 | IOWA FALLS | 515J | 2025-08-27 | 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.