All assignees
605 prefixes in 641 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 641-200 | CHARLES CY | 985E | 2018-06-29 | Yes |
| 641-201 | MASON CITY | 5562 | 2001-04-09 | Yes |
| 641-202 | CRESTON | 6266 | 2001-02-14 | Yes |
| 641-203 | CHARITON | 6266 | 2001-02-14 | Yes |
| 641-204 | PELLA | 5562 | 2004-08-17 | Yes |
| 641-205 | KNOXVILLE | 2842 | — | Yes |
| 641-206 | OSCEOLA | 6534 | 2017-08-17 | Yes |
| 641-207 | KEOTA | 2842 | 2004-01-14 | Yes |
| 641-208 | BLOOMFIELD | 6570 | 2004-03-01 | Yes |
| 641-209 | FAIRFIELD | 2842 | — | Yes |
| 641-210 | MASON CITY | 6529 | 2001-08-02 | Yes |
| 641-211 | XXXXXXXXXX | MULT | — | — |
| 641-212 | GREENFIELD | 1170 | 2015-06-25 | Yes |
| 641-213 | NEW HAVEN | 1177 | 2006-10-16 | — |
| 641-214 | DAVIS CITY | 6570 | 2020-08-10 | Yes |
| 641-215 | OSKALOOSA | 073H | — | Yes |
| 641-216 | CENTERVL | 6266 | — | Yes |
| 641-217 | CHARITON | 1178 | — | Yes |
| 641-218 | KNOXVILLE | 6266 | — | Yes |
| 641-219 | CHARITON | 6570 | 2020-10-09 | Yes |
| 641-220 | CHARLES CY | 6570 | — | Yes |
| 641-221 | GREENFIELD | 6266 | 2003-04-29 | Yes |
| 641-222 | BRITT | 965H | 2020-01-09 | Yes |
| 641-223 | OSCEOLA | 1167 | — | Yes |
| 641-224 | SIGOURNEY | 2842 | 2001-09-12 | Yes |
| 641-225 | EDDYVILLE | 2842 | 2001-09-12 | Yes |
| 641-226 | OTTUMWA | 6534 | 2001-07-11 | Yes |
| 641-227 | BAXTER | 1187 | — | — |
| 641-228 | CHARLES CY | 9631 | — | Yes |
| 641-229 | NEWHAMPTON | 6570 | 2004-05-06 | Yes |
| 641-230 | PELLA | 6534 | 2001-06-05 | Yes |
| 641-231 | CLEAR LAKE | 6570 | 2001-08-09 | Yes |
| 641-232 | LEIGHTON | 6534 | 2001-07-11 | Yes |
| 641-233 | FAIRFIELD | 6529 | 2001-05-15 | Yes |
| 641-234 | MOUNT AYR | 9572 | 2003-09-25 | — |
| 641-235 | NEW HAVEN | 1177 | 2006-05-01 | — |
| 641-236 | GRINNELL | 1167 | — | — |
| 641-237 | NEW HAVEN | 1177 | 2006-10-16 | — |
| 641-238 | GENEVA | 221F | — | Yes |
| 641-239 | AFTON | 6534 | 2021-03-03 | Yes |
| 641-240 | UNIONVILLE | 6534 | 2021-07-22 | Yes |
| 641-241 | FONTANELLE | 6534 | 2021-05-25 | Yes |
| 641-242 | BLOOMFIELD | 751F | 2010-03-08 | Yes |
| 641-243 | MASON CITY | 9877 | 2009-10-26 | Yes |
| 641-244 | OTTUMWA | 6534 | 2016-06-02 | Yes |
| 641-245 | PRESCOTT | 6534 | 2021-05-25 | Yes |
| 641-246 | NORA SPG | 6534 | 2021-07-19 | — |
| 641-247 | FONTANELLE | 6266 | 2009-01-13 | Yes |
| 641-248 | OLLIE | 6534 | 2021-05-25 | Yes |
| 641-249 | LINEVILLE | 6534 | 2021-07-19 | — |
| 641-250 | MANLY | 9877 | 2022-12-15 | Yes |
| 641-251 | FORESTCITY | 6529 | 2005-12-31 | Yes |
| 641-252 | DUMONT | 6534 | 2021-12-03 | Yes |
| 641-253 | BRISTOW | 6534 | 2022-02-22 | — |
| 641-254 | NASHUA | 9877 | 2022-12-15 | Yes |
| 641-255 | MASON CITY | 6529 | 2022-04-28 | Yes |
| 641-256 | CRESTON | 6534 | 2023-11-27 | Yes |
| 641-257 | CHARLES CY | 9631 | — | Yes |
| 641-258 | ADAIR | 516J | 2022-02-21 | Yes |
| 641-259 | MONROE | 1178 | — | Yes |
| 641-260 | GRINNELL | 6570 | — | Yes |
| 641-261 | TOLEDO | 6529 | 2022-04-28 | Yes |
| 641-262 | NEW HAVEN | 1177 | 2006-05-01 | — |
| 641-263 | MORAVIA | 444G | 2024-01-22 | Yes |
| 641-264 | LTL CEDAR | 1177 | 2006-05-01 | — |
| 641-265 | ATTICA | 624H | 2024-05-01 | Yes |
| 641-266 | ACKLEY | 516J | 2022-02-21 | Yes |
| 641-267 | CHILLICOTH | 624H | 2024-05-01 | Yes |
| 641-268 | LACONA | 444G | 2022-07-28 | Yes |
| 641-269 | GRINNELL | 1167 | — | — |
| 641-270 | CINCINNATI | 624H | 2024-05-01 | Yes |
| 641-271 | CLEARFIELD | 624H | 2024-05-01 | Yes |
| 641-272 | BRIDGEWTR | 516J | 2022-03-10 | Yes |
| 641-273 | DIAGONAL | 624H | 2024-05-01 | Yes |
| 641-274 | LOVILIA | 6534 | 2020-09-21 | Yes |
| 641-275 | NEWTON | 6534 | 2001-03-20 | Yes |
| 641-276 | AGENCY | 624H | 2019-11-05 | Yes |
| 641-277 | OTTUMWA | 6534 | 2020-08-05 | Yes |
| 641-278 | CRESTON | 1167 | 2007-08-21 | Yes |
| 641-279 | DOUDS | 624H | 2024-05-06 | Yes |
| 641-280 | LUCAS | 624H | 2024-05-20 | Yes |
| 641-281 | CHARLES CY | 495J | 2020-12-09 | Yes |
| 641-282 | SOUTHADAMS | 6534 | 2021-05-27 | Yes |
| 641-283 | ELDON | 624H | 2024-05-06 | Yes |
| 641-284 | FARSON | 624H | 2024-05-06 | Yes |
| 641-285 | HEDRICK | 624H | 2024-05-06 | Yes |
| 641-286 | KELLERTON | 624H | 2024-05-06 | Yes |
| 641-287 | PEORIA | 624H | 2024-05-22 | Yes |
| 641-288 | AMUND | 6534 | 2021-05-25 | Yes |
| 641-289 | LAMONI | 6266 | 2009-06-03 | Yes |
| 641-290 | MILO | 490J | 2022-07-29 | Yes |
| 641-291 | PLANO | 624H | 2024-05-22 | Yes |
| 641-292 | LIBERTYCTR | 624H | 2024-05-06 | Yes |
| 641-293 | SO EMMONS | 1337 | — | — |
| 641-294 | RUSSELL | 624H | 2024-05-22 | Yes |
| 641-295 | OSKALOOSA | 6266 | 2002-02-25 | Yes |
| 641-296 | NEWVIRGINI | 624H | 2024-05-20 | Yes |
| 641-297 | ST MARYS | 1209 | — | — |
| 641-298 | AMUND | 1123 | — | Yes |
| 641-299 | SHANNON CY | 624H | 2024-05-22 | 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.