All assignees
605 prefixes in 641 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 641-826 | LTL CEDAR | 1177 | 2005-12-01 | — |
| 641-827 | NEW HAVEN | 1177 | 2005-12-01 | — |
| 641-828 | KNOXVILLE | 1178 | — | — |
| 641-829 | VENTURA | 1322 | — | — |
| 641-831 | NEWTON | 6529 | — | Yes |
| 641-832 | OSAGE | 9758 | 2002-05-07 | Yes |
| 641-834 | LYNNVILLE | 751F | 2007-02-14 | Yes |
| 641-837 | ALBIA | 516J | 2022-02-24 | Yes |
| 641-840 | NEWTON | 6570 | — | Yes |
| 641-841 | NEWTON | 1170 | — | Yes |
| 641-842 | KNOXVILLE | 1178 | — | Yes |
| 641-843 | BRITT | 9631 | — | Yes |
| 641-844 | MARSHALLTN | 9631 | — | Yes |
| 641-845 | KENSETT | 1337 | — | — |
| 641-846 | VENTURA | 751F | 2007-02-14 | Yes |
| 641-847 | ACKLEY | 9631 | — | Yes |
| 641-849 | ELDORA | 6570 | 2003-07-17 | Yes |
| 641-853 | ROWAN | 1127 | — | — |
| 641-854 | MARSHALLTN | 9631 | 2015-03-09 | Yes |
| 641-856 | CENTERVL | 1178 | — | Yes |
| 641-857 | DUMONT | 1152 | — | — |
| 641-858 | ELDORA | 1297 | — | Yes |
| 641-860 | BRITT | 6570 | — | Yes |
| 641-861 | PELLA | 6529 | — | — |
| 641-862 | WILLIAMSON | 1178 | — | Yes |
| 641-863 | BRITT | 6570 | — | Yes |
| 641-864 | HUBBARD | 1203 | — | — |
| 641-865 | NEW HAVEN | 1177 | 2006-10-16 | — |
| 641-866 | COULTER | 1127 | — | — |
| 641-868 | STEAMBOTRK | 1297 | — | Yes |
| 641-869 | WELLSBURG | 1170 | — | Yes |
| 641-870 | CORYDON | 9572 | — | Yes |
| 641-871 | KNOXVILLE | 6570 | — | Yes |
| 641-872 | CORYDON | 1094 | — | — |
| 641-873 | ALLERTON | 1888 | — | — |
| 641-874 | PROMISE CY | 1178 | — | Yes |
| 641-876 | LINEVILLE | 1888 | — | — |
| 641-877 | HUMESTON | 1178 | — | Yes |
| 641-880 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-881 | LATIMER | 6570 | — | Yes |
| 641-887 | SULLY | 751F | 2007-02-14 | Yes |
| 641-888 | GRINNELL | 6570 | — | Yes |
| 641-891 | KNOXVILLE | 6266 | — | Yes |
| 641-892 | SHEFFIELD | 1127 | — | Yes |
| 641-894 | AREDALE | 1282 | — | — |
| 641-895 | CENTERVL | 6266 | — | Yes |
| 641-896 | HANLONTOWN | 1337 | — | — |
| 641-897 | MILLERTON | 1888 | — | — |
| 641-898 | SEYMOUR | 1178 | — | Yes |
| 641-900 | MONA | 965H | 2019-12-30 | Yes |
| 641-901 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-902 | NEWHAMPTON | 6266 | 2025-03-21 | Yes |
| 641-903 | MASON CITY | 6529 | 2005-06-17 | Yes |
| 641-905 | MELBOURNE | 9877 | 2025-05-27 | Yes |
| 641-909 | LAKE MILLS | 6529 | 2006-03-24 | Yes |
| 641-911 | XXXXXXXXXX | MULT | — | — |
| 641-916 | ST CHARLES | 6534 | 2021-12-03 | Yes |
| 641-919 | FAIRFIELD | 6266 | — | Yes |
| 641-920 | STEAMBOTRK | 1297 | — | — |
| 641-921 | GREEN MT | 751F | 2010-03-08 | Yes |
| 641-922 | CONRAD | 1297 | — | — |
| 641-923 | GARNER | 9631 | — | Yes |
| 641-924 | GARNER | 9877 | 2010-03-10 | Yes |
| 641-925 | GARNER | 842E | 2012-02-23 | Yes |
| 641-926 | WODEN | 1337 | — | — |
| 641-927 | MILLER | 1337 | — | — |
| 641-929 | MARK | 1129 | — | — |
| 641-931 | ALBIA | 6570 | 2003-07-17 | Yes |
| 641-932 | ALBIA | 1170 | — | Yes |
| 641-933 | FREMONT | 1170 | — | Yes |
| 641-934 | BLADENSBG | 1178 | — | Yes |
| 641-935 | CHILLICOTH | 1178 | — | Yes |
| 641-936 | DOUDS | 1178 | — | Yes |
| 641-937 | AGENCY | 1178 | — | Yes |
| 641-938 | BLAKESBURG | 1178 | — | Yes |
| 641-939 | ELDORA | 1297 | — | — |
| 641-942 | MILO | 1178 | — | Yes |
| 641-943 | ATTICA | 1178 | — | Yes |
| 641-944 | BUSSEY | 1178 | — | Yes |
| 641-946 | LOVILIA | 1178 | — | Yes |
| 641-947 | MELCHER | 1178 | — | Yes |
| 641-948 | STEVENS | 1358 | — | — |
| 641-949 | TRACY | 1178 | — | Yes |
| 641-950 | — | — | ||
| 641-954 | OTTUMWA | 6570 | — | Yes |
| 641-955 | MONROE | 965H | 2020-07-21 | Yes |
| 641-958 | MULT | — | — | |
| 641-959 | MULT | — | — | |
| 641-962 | NEW HAVEN | 1177 | 2006-10-16 | — |
| 641-966 | BLADENSBG | 516J | 2022-02-28 | Yes |
| 641-969 | EDDYVILLE | 1170 | — | Yes |
| 641-976 | XXXXXXXXXX | MULT | — | — |
| 641-977 | NEW SHARON | 965H | 2020-07-21 | Yes |
| 641-980 | OTTUMWA | 6570 | — | Yes |
| 641-982 | NEW HAVEN | 1177 | — | — |
| 641-983 | LTL CEDAR | 1177 | — | — |
| 641-985 | RICEVILLE | 1177 | — | — |
| 641-988 | — | — | ||
| 641-990 | GRINNELL | 6266 | — | Yes |
| 641-991 | OSCEOLA | 6529 | 2025-03-20 | 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.