All assignees
113 prefixes in 534 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 534-200 | EAU CLAIRE | 425J | 2020-07-23 | Yes |
| 534-201 | CAMERON | 5489 | 2017-10-25 | Yes |
| 534-202 | SCANDINVIA | 508J | 2017-12-28 | Yes |
| 534-203 | RIVERFALLS | 225C | 2021-06-28 | Yes |
| 534-204 | EAU CLAIRE | 490J | 2021-12-23 | Yes |
| 534-205 | EAU CLAIRE | 227F | 2022-04-15 | Yes |
| 534-206 | BAY CITY | 5489 | 2022-07-13 | Yes |
| 534-207 | FOX CREEK | 6534 | 2022-12-01 | Yes |
| 534-208 | RICE LAKE | 6534 | 2022-12-12 | Yes |
| 534-209 | SPRINGLAKE | 5489 | 2022-02-04 | Yes |
| 534-210 | RIVERFALLS | 732J | 2023-02-10 | Yes |
| 534-211 | XXXXXXXXXX | MULT | — | — |
| 534-212 | EAU CLAIRE | 321J | 2023-03-08 | Yes |
| 534-213 | ELEVA | 490J | 2023-04-10 | Yes |
| 534-214 | RICE LAKE | 6534 | 2023-04-24 | Yes |
| 534-215 | SOMERSET | 490J | 2023-05-01 | Yes |
| 534-216 | RHINELANDR | 6534 | 2023-05-05 | Yes |
| 534-217 | MERRILLAN | 225C | 2023-07-19 | Yes |
| 534-218 | RICE LAKE | 6534 | 2023-07-25 | Yes |
| 534-219 | CANTON | 5489 | 2015-06-18 | Yes |
| 534-220 | CHIPPEWFLS | 516C | 2011-12-07 | Yes |
| 534-221 | RHINELANDR | 6534 | 2023-08-02 | Yes |
| 534-222 | AMHERST | 965H | 2020-04-23 | Yes |
| 534-223 | RICE LAKE | 6534 | 2023-08-17 | Yes |
| 534-224 | BIRCHWOOD | 225C | 2023-09-05 | Yes |
| 534-225 | RHINELANDR | 6534 | 2023-09-20 | Yes |
| 534-226 | RICE LAKE | 6534 | 2023-10-27 | Yes |
| 534-227 | COLBY | 516J | 2022-01-07 | Yes |
| 534-228 | RHINELANDR | 6534 | 2023-12-14 | Yes |
| 534-229 | LONG LAKE | 5489 | 2015-06-18 | Yes |
| 534-230 | RHINELANDR | 6534 | 2024-02-14 | Yes |
| 534-231 | STEVENS PT | 225C | 2024-03-21 | Yes |
| 534-232 | WAUSAU | 225C | 2024-03-21 | Yes |
| 534-233 | LADYSMITH | 624H | 2024-03-29 | Yes |
| 534-234 | AUBURNDALE | 965H | 2020-10-16 | Yes |
| 534-235 | CLINTONVL | 6529 | 2025-01-16 | Yes |
| 534-236 | BLCKRIVFLS | 6701 | 2025-01-16 | Yes |
| 534-237 | RHINELANDR | 6534 | 2025-03-24 | Yes |
| 534-238 | DRUMMOND | 5489 | 2017-10-25 | Yes |
| 534-239 | GRANDVIEW | 5489 | 2017-10-25 | Yes |
| 534-240 | MENOMONIE | 478J | 2025-04-18 | Yes |
| 534-241 | RHINELANDR | 6534 | 2025-05-16 | Yes |
| 534-242 | RHINELANDR | 6534 | 2025-06-20 | Yes |
| 534-243 | HUDSON | 225C | 2025-08-12 | Yes |
| 534-244 | RHINELANDR | 225C | 2025-08-12 | Yes |
| 534-245 | SHAWANO | 6508 | 2025-09-16 | Yes |
| 534-246 | WAUSAU | 6534 | 2025-10-08 | Yes |
| 534-247 | SUPERIOR | 458L | 2025-12-23 | Yes |
| 534-248 | RIVERFALLS | 5489 | 2014-11-18 | Yes |
| 534-249 | MERRILL | 6508 | 2026-01-08 | Yes |
| 534-250 | RHINELANDR | 6534 | 2026-03-03 | Yes |
| 534-251 | RHINELANDR | 6534 | 2026-03-03 | Yes |
| 534-252 | CABLE | 5489 | 2017-10-11 | Yes |
| 534-253 | MARSHFIELD | 516J | 2021-10-01 | Yes |
| 534-254 | WAUPACA | 516J | 2021-04-08 | Yes |
| 534-255 | ARKANSAW | 5489 | 2026-06-24 | Yes |
| 534-256 | EAU GALLE | 5489 | 2026-06-24 | Yes |
| 534-257 | RHINELANDR | 6534 | 2026-08-19 | Yes |
| 534-258 | RHINELANDR | 6534 | 2026-08-19 | Yes |
| 534-259 | BENOIT | 5489 | 2017-10-11 | Yes |
| 534-263 | MILL CREEK | 516J | 2022-02-04 | Yes |
| 534-277 | STEVENS PT | 225C | 2021-12-17 | Yes |
| 534-300 | DORCHESTER | 965H | 2021-05-13 | Yes |
| 534-311 | XXXXXXXXXX | MULT | — | — |
| 534-313 | LA POINTE | 5489 | 2017-10-25 | Yes |
| 534-321 | NEW AUBURN | 5489 | 2015-06-18 | Yes |
| 534-322 | CORNUCOPIA | 5489 | 2017-10-11 | Yes |
| 534-331 | IRON RIVER | 5489 | 2017-10-25 | Yes |
| 534-333 | CHILI | 965H | 2020-04-23 | Yes |
| 534-344 | WHITEHALL | 225C | 2018-12-05 | Yes |
| 534-345 | ELDERON | 965H | 2021-08-11 | Yes |
| 534-349 | ELK LAKE | 5562 | 2015-06-09 | Yes |
| 534-356 | WAUSAU | 965H | 2021-08-18 | Yes |
| 534-363 | GRANTON | 516J | 2022-01-11 | Yes |
| 534-400 | WAUPACA | 225C | 2018-09-25 | Yes |
| 534-411 | XXXXXXXXXX | MULT | — | — |
| 534-421 | MARENGO | 5489 | 2017-10-25 | Yes |
| 534-429 | WAUPACA | 7216 | 2015-07-24 | Yes |
| 534-438 | BARNES | 5489 | 2017-10-11 | Yes |
| 534-444 | EAU CLAIRE | 225C | 2018-11-19 | Yes |
| 534-465 | EAU CLAIRE | 883K | 2026-06-04 | Yes |
| 534-500 | MARATHON | 965H | 2021-01-11 | Yes |
| 534-504 | EAU CLAIRE | 939H | 2023-01-31 | Yes |
| 534-511 | XXXXXXXXXX | MULT | — | — |
| 534-530 | EAU CLAIRE | 616J | 2024-12-20 | Yes |
| 534-534 | WEBSTER | 225C | 2024-02-19 | Yes |
| 534-535 | JUNCTIONCY | 225C | 2021-05-26 | Yes |
| 534-544 | HUDSON | 225C | 2018-12-05 | Yes |
| 534-555 | DIR ASST | MULT | — | — |
| 534-600 | THREELAKES | 965H | 2020-08-20 | Yes |
| 534-611 | XXXXXXXXXX | MULT | — | — |
| 534-626 | WAUSAU | 516J | 2022-02-01 | Yes |
| 534-636 | — | — | ||
| 534-666 | GREENWOOD | 965H | 2020-04-23 | Yes |
| 534-700 | — | — | ||
| 534-711 | XXXXXXXXXX | MULT | — | — |
| 534-758 | SCANDINVIA | 965H | 2021-07-02 | Yes |
| 534-768 | AMBERG | 516J | 2022-01-11 | Yes |
| 534-777 | VESPER | 965H | 2020-03-27 | Yes |
| 534-787 | MATTOON | 516J | 2022-01-11 | 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.