All assignees
579 prefixes in 319 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 319-836 | PRIMROSE | 1178 | — | Yes |
| 319-837 | WEST POINT | 1178 | — | Yes |
| 319-838 | ARGYLE | 1178 | — | Yes |
| 319-839 | MARENGO | 1167 | 2018-03-08 | Yes |
| 319-841 | ELY | 1298 | — | — |
| 319-842 | ALBURNETT | 1173 | — | — |
| 319-844 | MONTICELLO | 593K | 2010-03-19 | Yes |
| 319-845 | FAIRFAX | 1298 | — | — |
| 319-846 | FAIRFAX | 1298 | — | — |
| 319-848 | ELY | 1298 | — | — |
| 319-849 | CENTER PT | 9631 | — | Yes |
| 319-850 | BURLINGTON | 6570 | — | Yes |
| 319-851 | PALO | 1269 | — | — |
| 319-853 | NO LIBERTY | 6570 | 2007-02-14 | Yes |
| 319-854 | SPRINGVL | 1302 | — | — |
| 319-855 | IOWA CITY | 6534 | 2008-09-08 | Yes |
| 319-857 | SWISHER | 1298 | — | — |
| 319-859 | CEDARFALLS | 9631 | — | Yes |
| 319-861 | CEDAR RPDS | 9631 | — | — |
| 319-862 | CEDAR RPDS | 9631 | — | — |
| 319-863 | WASHINGTON | 1167 | — | Yes |
| 319-864 | WASHINGTON | 957H | 2017-11-03 | Yes |
| 319-865 | MOUNTUNION | 1178 | — | Yes |
| 319-866 | CEDAR RPDS | 9631 | — | — |
| 319-867 | IOWA CITY | 939H | 2019-06-24 | Yes |
| 319-868 | MORNINGSUN | 1250 | — | Yes |
| 319-874 | WATERLOO | 9631 | — | — |
| 319-877 | WESTBRANCH | 593K | 2006-11-15 | Yes |
| 319-878 | FARMINGTON | 1178 | — | Yes |
| 319-880 | MORNINGSUN | 179J | 2020-01-16 | Yes |
| 319-881 | WAPELLO | 1178 | 2015-06-25 | Yes |
| 319-882 | TRIPOLI | 1115 | — | — |
| 319-883 | WATERLOO | 6570 | 2009-03-24 | Yes |
| 319-884 | APLINGTON | 1170 | 2006-07-28 | Yes |
| 319-885 | SHELL ROCK | 1115 | — | — |
| 319-887 | IOWA CITY | 9631 | — | — |
| 319-888 | WATERLOO | 508J | — | Yes |
| 319-892 | CEDAR RPDS | 829J | — | — |
| 319-893 | CEDAR RPDS | 506J | 2021-12-02 | Yes |
| 319-895 | MT VERNON | 9631 | — | Yes |
| 319-896 | CEDAR RPDS | 9631 | — | — |
| 319-899 | CEDAR RPDS | 6570 | — | Yes |
| 319-900 | CEDAR RPDS | 145J | 2019-02-22 | Yes |
| 319-910 | PARKERSBG | 939H | 2023-04-04 | Yes |
| 319-911 | XXXXXXXXXX | MULT | — | — |
| 319-922 | SALEM | 516J | 2022-03-14 | Yes |
| 319-929 | CEDAR RPDS | 6266 | — | Yes |
| 319-930 | IOWA CITY | 6266 | — | Yes |
| 319-931 | MTPLEASANT | 6266 | — | Yes |
| 319-933 | JANESVILLE | 221F | 2021-04-12 | Yes |
| 319-934 | QUASQUETON | 1156 | — | — |
| 319-935 | WINTHROP | 1156 | — | — |
| 319-936 | IOWA CITY | 6529 | — | — |
| 319-937 | KINGSTON | 1251 | — | — |
| 319-938 | ROWLEY | 1178 | — | Yes |
| 319-939 | WATERLOO | 6266 | — | Yes |
| 319-942 | HILLSBORO | 516J | 2022-03-04 | Yes |
| 319-946 | MOUNTUNION | 965H | 2020-02-13 | Yes |
| 319-950 | — | — | ||
| 319-958 | MULT | — | — | |
| 319-959 | MULT | — | — | |
| 319-961 | WATERLOO | 6529 | — | — |
| 319-966 | GRANDVIEW | 516J | 2022-02-28 | Yes |
| 319-975 | ANAMOSA | 6266 | 2014-12-29 | Yes |
| 319-976 | XXXXXXXXXX | MULT | — | — |
| 319-981 | CEDAR RPDS | 6529 | — | — |
| 319-983 | PARKERSBG | 9631 | — | Yes |
| 319-984 | DENVER | 9631 | — | Yes |
| 319-985 | DODGEVILLE | 1251 | — | — |
| 319-986 | MTPLEASANT | 1178 | — | — |
| 319-987 | JANESVILLE | 1170 | — | Yes |
| 319-988 | HUDSON | 9631 | — | Yes |
| 319-989 | PARKERSBG | 9631 | — | Yes |
| 319-990 | BRIGHTON | 6529 | 2025-03-31 | Yes |
| 319-992 | TIFFIN | 516J | 2022-03-25 | Yes |
| 319-995 | WINFIELD | 516J | 2022-03-15 | Yes |
| 319-996 | HOUGHTON | 516J | 2022-03-04 | Yes |
| 319-997 | NEW LONDON | 516J | 2022-03-10 | Yes |
| 319-999 | CEDAR RPDS | 624E | 2008-05-01 | — |
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.