All assignees
799 prefixes in 920 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 920-200 | DE PERE | 6508 | — | Yes |
| 920-201 | APPLETON | 425J | 2020-07-21 | Yes |
| 920-202 | APPLETON | 6274 | — | Yes |
| 920-203 | OSHKOSH | 6529 | — | Yes |
| 920-204 | FONDDU LAC | 6508 | — | Yes |
| 920-205 | APPLETON | 6529 | — | Yes |
| 920-206 | WATERTOWN | 9327 | — | Yes |
| 920-207 | SHEBOYGAN | 6274 | — | Yes |
| 920-208 | SHEBOYGAN | 9327 | — | — |
| 920-209 | APPLETON | 6274 | — | Yes |
| 920-210 | BEAVER DAM | 6274 | — | Yes |
| 920-211 | XXXXXXXXXX | MULT | — | — |
| 920-212 | MAYVILLE | 6508 | — | Yes |
| 920-213 | APPLETON | 6508 | — | — |
| 920-214 | MAYVILLE | 6508 | — | Yes |
| 920-215 | NEENAH | 9327 | — | Yes |
| 920-216 | OSHKOSH | 6534 | 2001-02-14 | Yes |
| 920-217 | GREEN BAY | 6529 | — | Yes |
| 920-218 | MANITOWOC | 9748 | — | — |
| 920-219 | BEAVER DAM | 6508 | — | Yes |
| 920-220 | JOHNSONCRK | 5562 | — | Yes |
| 920-221 | APPLETON | 9327 | 2013-07-30 | Yes |
| 920-222 | LAKE MILLS | 6529 | — | Yes |
| 920-223 | OSHKOSH | 9327 | — | — |
| 920-224 | APPLETON | 6183 | — | Yes |
| 920-225 | APPLETON | 9327 | — | Yes |
| 920-226 | SHEBOYGAN | 6534 | — | Yes |
| 920-227 | GREEN BAY | 5489 | — | Yes |
| 920-228 | SEYMOUR | 6692 | — | Yes |
| 920-229 | GREEN LAKE | 6274 | — | Yes |
| 920-230 | OSHKOSH | 1519 | 2001-02-05 | — |
| 920-231 | OSHKOSH | 9327 | — | — |
| 920-232 | OSHKOSH | 9327 | — | — |
| 920-233 | OSHKOSH | 9327 | — | — |
| 920-234 | SHEBOGNFLS | 5489 | 2012-11-16 | Yes |
| 920-235 | OSHKOSH | 9327 | — | — |
| 920-236 | OSHKOSH | 9327 | — | — |
| 920-237 | OSHKOSH | 9327 | — | Yes |
| 920-238 | FONDDU LAC | 6274 | — | Yes |
| 920-239 | WAUPUN | 829J | — | Yes |
| 920-240 | WAUTOMA | 5489 | 2004-06-29 | Yes |
| 920-241 | DE PERE | 6508 | — | Yes |
| 920-242 | MANITOWOC | 5562 | — | Yes |
| 920-243 | APPLETON | 5489 | — | Yes |
| 920-244 | OGDENSBURG | 0905 | — | Yes |
| 920-245 | WATERTOWN | 7216 | — | Yes |
| 920-246 | GREEN BAY | 6508 | — | — |
| 920-247 | GREEN BAY | 197D | 2017-12-18 | Yes |
| 920-248 | WATERTOWN | 5562 | — | Yes |
| 920-249 | NEW LONDON | 6534 | — | Yes |
| 920-250 | NEW LONDON | 6534 | — | Yes |
| 920-251 | FONDDU LAC | 6529 | — | Yes |
| 920-252 | OSHKOSH | 6508 | 2001-12-11 | Yes |
| 920-253 | WATERTOWN | 6274 | — | Yes |
| 920-254 | SHEBOYGAN | 5562 | — | Yes |
| 920-255 | KEWAUNEE | 5564 | 2001-05-23 | — |
| 920-256 | STURGEONBY | 6529 | 2001-08-02 | Yes |
| 920-257 | APPLETON | 9327 | — | Yes |
| 920-258 | OSHKOSH | 6630 | — | — |
| 920-259 | SEYMOUR | 2964 | 2008-01-29 | Yes |
| 920-260 | MARKESAN | 5489 | 2004-06-29 | Yes |
| 920-261 | WATERTOWN | 9327 | — | — |
| 920-262 | WATERTOWN | 9327 | — | — |
| 920-263 | FONDDU LAC | 6692 | — | Yes |
| 920-264 | GREEN BAY | 5489 | — | Yes |
| 920-265 | GREEN BAY | 6529 | 2001-08-09 | Yes |
| 920-266 | FONDDU LAC | 9327 | — | Yes |
| 920-267 | OSHKOSH | 5489 | 2002-05-13 | Yes |
| 920-268 | APPLETON | 5489 | 2002-05-13 | Yes |
| 920-269 | LOMIRA | 0886 | — | Yes |
| 920-270 | EDEN | 624H | 2021-07-02 | Yes |
| 920-271 | GREEN BAY | 520K | — | — |
| 920-272 | GREEN BAY | 6183 | — | — |
| 920-273 | FONDDU LAC | 829J | — | Yes |
| 920-274 | DENMARK | 225C | 2023-06-09 | Yes |
| 920-275 | APPLETON | 6630 | — | — |
| 920-276 | THERESA | 0886 | 2001-06-12 | Yes |
| 920-277 | APPLETON | 6529 | 2001-04-09 | Yes |
| 920-278 | DE PERE | 5489 | — | Yes |
| 920-279 | OSHKOSH | 6508 | — | — |
| 920-280 | LTL CHUTE | 225C | 2016-03-15 | Yes |
| 920-281 | APPLETON | 520K | — | — |
| 920-282 | CAMBRIA | 227F | 2001-06-16 | Yes |
| 920-283 | GREEN BAY | 227F | 2016-10-17 | Yes |
| 920-284 | APPLETON | 6508 | 2002-08-27 | — |
| 920-285 | WATERTOWN | 6534 | — | — |
| 920-286 | KIEL | 6274 | — | Yes |
| 920-287 | SHEBOYGAN | 5489 | — | Yes |
| 920-288 | GREEN BAY | 9327 | 2001-04-27 | Yes |
| 920-289 | PICKETT | 6508 | 2003-08-08 | Yes |
| 920-290 | BERLIN | 6534 | — | Yes |
| 920-291 | PRINCETON | 6274 | — | Yes |
| 920-292 | OSHKOSH | 520K | — | — |
| 920-293 | NESHKORO | 0922 | — | Yes |
| 920-294 | GREEN LAKE | 0924 | — | Yes |
| 920-295 | PRINCETON | 0924 | — | Yes |
| 920-296 | BEAVER DAM | 6274 | — | Yes |
| 920-297 | LAKE MILLS | 6529 | — | Yes |
| 920-298 | TWO RIVERS | 6692 | — | Yes |
| 920-299 | GREEN LAKE | 6534 | — | 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.