All assignees
524 prefixes in 810 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 810-200 | LAPEER | 6534 | 2022-12-13 | Yes |
| 810-201 | PT SANILAC | 6534 | 2004-03-08 | Yes |
| 810-202 | FLUSHING | 933G | 2014-05-30 | Yes |
| 810-203 | APPLEGATE | 9748 | — | — |
| 810-204 | PORT HURON | 543C | 2020-10-20 | Yes |
| 810-205 | PORT HURON | 9748 | — | — |
| 810-206 | BRIGHTON | 543C | 2016-02-25 | Yes |
| 810-207 | HARTLAND | 770E | 2005-11-23 | Yes |
| 810-208 | FENTON | 792K | 2007-01-04 | Yes |
| 810-209 | BYRON | 829J | — | Yes |
| 810-210 | FLINT | 2964 | 2001-01-15 | Yes |
| 810-211 | XXXXXXXXXX | MULT | — | — |
| 810-212 | METAMORA | 6120 | 2013-07-12 | Yes |
| 810-213 | FLINT | 7279 | — | Yes |
| 810-214 | DAVISON | 792K | 2009-08-03 | Yes |
| 810-215 | FENTON | 792K | 2016-03-16 | Yes |
| 810-216 | PORT HURON | 817J | 2013-06-18 | Yes |
| 810-217 | SOUTHFIELD | 2964 | — | Yes |
| 810-218 | PORT HURON | 6003 | 2023-09-01 | Yes |
| 810-219 | FLINT | 6534 | 2016-11-02 | Yes |
| 810-220 | BRIGHTON | 9323 | — | Yes |
| 810-221 | FLINT | 933G | 2013-07-12 | Yes |
| 810-222 | BRIGHTON | 7279 | — | Yes |
| 810-223 | FLINT | 2964 | — | Yes |
| 810-224 | BRIGHTON | 7279 | — | Yes |
| 810-225 | BRIGHTON | 9323 | — | — |
| 810-226 | DAVISON | 991E | 2014-08-13 | Yes |
| 810-227 | BRIGHTON | 9323 | — | — |
| 810-228 | FLINT | 2964 | 2012-07-13 | Yes |
| 810-229 | BRIGHTON | 9323 | — | — |
| 810-230 | FLINT | 9323 | — | Yes |
| 810-231 | BRIGHTON | 9323 | — | Yes |
| 810-232 | FLINT | 9323 | — | — |
| 810-233 | FLINT | 9323 | — | — |
| 810-234 | FLINT | 9323 | — | — |
| 810-235 | FLINT | 9323 | — | — |
| 810-236 | FLINT | 9323 | — | — |
| 810-237 | FLINT | 9323 | — | Yes |
| 810-238 | FLINT | 9323 | — | — |
| 810-239 | FLINT | 9323 | — | — |
| 810-240 | FLINT | 6003 | — | — |
| 810-241 | FLINT | 6003 | — | — |
| 810-242 | PORT HURON | 6534 | 2017-03-20 | Yes |
| 810-243 | FLINT | 6534 | 2019-12-09 | Yes |
| 810-244 | FLINT | 829J | — | — |
| 810-245 | LAPEER | 9323 | — | — |
| 810-246 | LAPEER | 6534 | 2020-05-18 | Yes |
| 810-247 | MONTROSE | 6003 | 2004-04-01 | — |
| 810-248 | BRIGHTON | 597F | 2026-04-30 | Yes |
| 810-249 | FLINT | 829J | — | — |
| 810-250 | FLINT | 9323 | — | Yes |
| 810-251 | FLINT | 9323 | — | — |
| 810-252 | FLINT | 6003 | — | — |
| 810-253 | IMLAY CITY | 9748 | — | — |
| 810-254 | GRANDBLANC | 770E | 2020-08-17 | Yes |
| 810-255 | HADLEY | 770E | 2015-09-17 | Yes |
| 810-256 | METAMORA | 543C | 2021-06-25 | Yes |
| 810-257 | FLINT | 9323 | — | — |
| 810-258 | RANKIN | 792K | 2008-08-26 | Yes |
| 810-259 | FLINT | 2964 | 2012-07-13 | Yes |
| 810-260 | LAPEER | 6534 | 2022-04-15 | Yes |
| 810-261 | RANKIN | 543C | 2020-10-23 | Yes |
| 810-262 | FLINT | 6003 | 2008-01-31 | Yes |
| 810-263 | BRIGHTON | 2964 | 2016-11-15 | Yes |
| 810-264 | MEMPHIS | 543C | 2020-11-03 | Yes |
| 810-265 | FLINT | 6534 | — | Yes |
| 810-266 | BYRON | 9323 | — | Yes |
| 810-267 | LAPEER | 2550 | — | Yes |
| 810-268 | FLINT | 2964 | 2021-06-28 | Yes |
| 810-269 | SANDUSKY | 770E | — | Yes |
| 810-270 | NORTH BRCH | 792K | 2006-02-21 | Yes |
| 810-271 | LENNON | 792K | 2019-04-19 | Yes |
| 810-272 | LAPEER | 7279 | — | Yes |
| 810-273 | GOODRICH | 543C | 2021-06-16 | Yes |
| 810-274 | LAPEER | 7421 | 2022-09-08 | Yes |
| 810-275 | FLINT | 7279 | — | Yes |
| 810-276 | PORT HURON | 2964 | 2021-11-03 | Yes |
| 810-277 | LAPEER | 7279 | — | Yes |
| 810-278 | ALGONAC | 6003 | — | Yes |
| 810-279 | HARTLAND | 508J | 2014-04-15 | Yes |
| 810-280 | FLINT | 6003 | — | — |
| 810-281 | LEXINGTON | 6003 | 2021-06-28 | Yes |
| 810-282 | FLINT | 9323 | 2002-08-06 | Yes |
| 810-283 | JEDDO | 543C | 2021-06-16 | Yes |
| 810-284 | LAPEER | 543C | 2021-06-16 | Yes |
| 810-285 | FLINT | 6003 | 2012-07-13 | Yes |
| 810-286 | NORTH BRCH | 543C | 2021-06-16 | Yes |
| 810-287 | FLINT | 6003 | — | — |
| 810-288 | FLINT | 6534 | 2009-12-01 | Yes |
| 810-289 | ST CLAIR | 6534 | 2014-09-26 | Yes |
| 810-290 | FLINT | 6630 | — | — |
| 810-291 | BRIGHTON | 732J | — | Yes |
| 810-292 | PORT HURON | 2964 | 2011-08-30 | Yes |
| 810-293 | FLINT | 5562 | 2010-08-05 | Yes |
| 810-294 | PORT HURON | 991E | 2010-10-11 | Yes |
| 810-295 | BRIGHTON | 2964 | 2020-06-11 | Yes |
| 810-296 | LAPEER | 6534 | 2021-12-15 | Yes |
| 810-297 | FLINT | 2964 | 2021-12-23 | Yes |
| 810-298 | LAPEER | 6534 | 2023-10-27 | Yes |
| 810-299 | BRIGHTON | 6120 | — | 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.