All assignees
579 prefixes in 319 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 319-653 | WASHINGTON | 1167 | — | — |
| 319-654 | CEDAR RPDS | 9631 | — | Yes |
| 319-655 | MILLERSBG | 1247 | — | — |
| 319-656 | KALONA | 1214 | — | — |
| 319-657 | AINSWORTH | 1178 | — | Yes |
| 319-658 | CRAWFODSVL | 1178 | — | Yes |
| 319-660 | WILLIAMSBG | 6570 | — | Yes |
| 319-661 | WILLIAMSBG | 6570 | — | Yes |
| 319-662 | CONROY | 1167 | — | Yes |
| 319-663 | BLAIRSTOWN | 516J | 2022-02-17 | Yes |
| 319-664 | NO ENGLISH | 1257 | — | — |
| 319-665 | NO LIBERTY | 1298 | — | — |
| 319-666 | CEDARFALLS | 965H | 2019-01-28 | Yes |
| 319-667 | SO ENGLISH | 1247 | — | — |
| 319-668 | WILLIAMSBG | 1167 | — | Yes |
| 319-669 | FT MADISON | 6534 | 2001-06-05 | Yes |
| 319-670 | KEOKUK | 6534 | 2001-06-05 | Yes |
| 319-671 | BURLINGTON | 444G | 2001-06-05 | Yes |
| 319-674 | WELLMAN | 593K | 2006-11-29 | Yes |
| 319-675 | OXFORD | 516J | 2022-02-18 | Yes |
| 319-677 | KEOSAUQUA | 6570 | 2006-04-21 | Yes |
| 319-678 | IOWA CITY | 9631 | 2012-07-10 | Yes |
| 319-679 | HILLS | 1293 | — | — |
| 319-683 | SHARON CTR | 1293 | — | — |
| 319-685 | GUERNSEY | 1139 | — | — |
| 319-688 | IOWA CITY | 9631 | — | — |
| 319-693 | CEDAR RPDS | 6534 | 2008-09-30 | Yes |
| 319-694 | BRIGHTON | 1178 | — | Yes |
| 319-695 | PACKWOOD | 1178 | — | Yes |
| 319-696 | LOCKRIDGE | 1178 | — | Yes |
| 319-698 | W CHESTER | 1167 | — | Yes |
| 319-699 | ALLISON | 544H | 2015-05-14 | Yes |
| 319-700 | — | — | ||
| 319-701 | CEDAR RPDS | 722G | 2025-04-03 | Yes |
| 319-709 | WINTHROP | 544H | 2015-05-14 | Yes |
| 319-710 | MTPLEASANT | 624H | 2024-02-06 | Yes |
| 319-711 | XXXXXXXXXX | MULT | — | — |
| 319-712 | WALKER | 221F | 2024-06-05 | Yes |
| 319-719 | VINTON | 221F | 2022-11-28 | Yes |
| 319-720 | CEDAR RPDS | 938D | 2008-12-17 | Yes |
| 319-721 | CEDAR RPDS | 6266 | — | Yes |
| 319-722 | WILLIAMSBG | 1167 | 2015-06-25 | Yes |
| 319-723 | NICHOLS | 1178 | — | Yes |
| 319-725 | CONESVILLE | 1178 | — | Yes |
| 319-726 | LETTS | 1178 | — | Yes |
| 319-727 | COGGON | 221F | 2016-03-15 | Yes |
| 319-728 | COLUMBSJCT | 1178 | — | Yes |
| 319-729 | GRANDVIEW | 1178 | — | Yes |
| 319-730 | CEDAR RPDS | 829J | — | — |
| 319-731 | CEDAR RPDS | 829J | — | — |
| 319-732 | KEOKUK | 965H | 2019-12-27 | Yes |
| 319-733 | FARMINGTON | 516J | 2022-03-10 | Yes |
| 319-734 | CEDAR RPDS | 829J | — | Yes |
| 319-738 | KESWICK | 1247 | — | Yes |
| 319-739 | CEDAR RPDS | 829J | — | — |
| 319-741 | MARENGO | 4189 | — | — |
| 319-742 | DENMARK | 516J | 2022-02-24 | Yes |
| 319-743 | CEDAR RPDS | 9631 | — | Yes |
| 319-745 | W LIBERTY | 593K | 2006-11-15 | Yes |
| 319-746 | BRANDON | 516J | 2022-02-17 | Yes |
| 319-750 | BURLINGTON | 6570 | — | — |
| 319-752 | BURLINGTON | 9631 | — | — |
| 319-753 | BURLINGTON | 9631 | — | — |
| 319-754 | BURLINGTON | 9631 | — | — |
| 319-758 | BURLINGTON | 9631 | — | — |
| 319-759 | BURLINGTON | 6266 | — | Yes |
| 319-766 | OAKVILLE | 1178 | — | Yes |
| 319-767 | KEOKUK | 516J | 2022-03-24 | Yes |
| 319-768 | BURLINGTON | 9631 | — | Yes |
| 319-770 | WEST POINT | 624H | 2024-02-06 | Yes |
| 319-774 | CEDAR RPDS | 9877 | 2010-11-24 | Yes |
| 319-775 | CEDAR RPDS | 985E | 2008-05-28 | Yes |
| 319-776 | ROWLEY | 516J | 2022-03-25 | Yes |
| 319-777 | CEDAR RPDS | 444G | 2011-04-15 | Yes |
| 319-779 | KALONA | 593K | 2010-03-19 | Yes |
| 319-784 | CEDAR RPDS | 9631 | — | Yes |
| 319-786 | CEDAR RPDS | 9631 | — | — |
| 319-788 | REINBECK | 9129 | 2001-11-29 | — |
| 319-789 | WASHINGTON | 1167 | 2015-06-25 | Yes |
| 319-790 | CEDAR RPDS | 829J | — | Yes |
| 319-795 | KEOKUK | 6266 | — | Yes |
| 319-796 | STOCKPORT | 1319 | — | — |
| 319-799 | ATKINS | 544H | 2015-05-14 | Yes |
| 319-800 | IOWA CITY | 6570 | — | Yes |
| 319-804 | CEDAR RPDS | 221F | 2008-12-15 | Yes |
| 319-811 | XXXXXXXXXX | MULT | — | — |
| 319-820 | MONTICELLO | 9877 | 2010-03-11 | Yes |
| 319-821 | ANAMOSA | 6529 | — | — |
| 319-822 | DUNKERTON | 1153 | — | — |
| 319-823 | GRUNDY CTR | 6570 | 2003-07-17 | Yes |
| 319-824 | GRUNDY CTR | 1170 | — | Yes |
| 319-825 | GRUNDY CTR | 444G | — | — |
| 319-826 | CEDAR RPDS | 593K | 2010-03-10 | Yes |
| 319-827 | JESUP | 1171 | — | Yes |
| 319-828 | OXFORD | 562E | — | — |
| 319-830 | WATERLOO | 6570 | — | Yes |
| 319-832 | CEDAR RPDS | 9631 | — | — |
| 319-833 | WATERLOO | 9631 | — | — |
| 319-834 | IOWA CITY | 9631 | — | Yes |
| 319-835 | DONNELLSON | 1178 | — | 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.