All assignees
225 prefixes in 947 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 947-200 | ORTONVILLE | 543C | 2016-04-25 | Yes |
| 947-201 | AUBURN HTS | 6003 | 2017-04-27 | Yes |
| 947-202 | ORTONVILLE | 6003 | 2005-03-04 | Yes |
| 947-203 | OXFORD | 5562 | 2017-06-07 | Yes |
| 947-204 | MILFDWH LK | 6534 | 2017-10-25 | Yes |
| 947-205 | TROY | 2964 | 2018-01-11 | Yes |
| 947-206 | ORTONVILLE | 6003 | 2006-03-29 | Yes |
| 947-207 | SOUTH LYON | 991E | 2018-09-24 | Yes |
| 947-208 | AUBURN HTS | 5562 | 2018-09-24 | Yes |
| 947-209 | TROY | 6534 | 2018-08-31 | Yes |
| 947-210 | PONTIAC | 5562 | 2018-09-26 | Yes |
| 947-211 | XXXXXXXXXX | MULT | — | — |
| 947-212 | CLARKSTON | 6003 | 2005-07-13 | Yes |
| 947-213 | ORTONVILLE | 6003 | 2005-10-21 | Yes |
| 947-214 | WALLEDLAKE | 933G | 2018-11-01 | Yes |
| 947-215 | SOUTHFIELD | 6534 | 2019-03-12 | Yes |
| 947-216 | FARMINGTON | 6534 | 2020-01-17 | Yes |
| 947-217 | SOUTHFIELD | 6534 | 2020-03-30 | Yes |
| 947-218 | TROY | 6534 | 2020-03-30 | Yes |
| 947-219 | BIRMINGHAM | 543C | — | Yes |
| 947-220 | ORTONVILLE | 6003 | 2005-10-21 | Yes |
| 947-221 | DRAYTON PL | 991E | 2018-09-28 | Yes |
| 947-222 | DRAYTON PL | 543C | 2015-09-29 | Yes |
| 947-223 | COMMERCE | 543C | 2020-06-24 | Yes |
| 947-224 | SOUTHFIELD | 425J | 2020-06-25 | Yes |
| 947-225 | HOLLY | 5562 | 2020-07-27 | Yes |
| 947-226 | AUBURN HTS | 6003 | 2020-08-17 | Yes |
| 947-227 | WALLEDLAKE | 543C | 2020-11-24 | Yes |
| 947-228 | FARMINGTON | 991E | 2020-09-21 | Yes |
| 947-229 | CLARKSTON | 2964 | 2020-12-10 | Yes |
| 947-230 | ROYAL OAK | 5562 | — | Yes |
| 947-231 | BIRMINGHAM | 6534 | 2023-05-11 | Yes |
| 947-232 | PONTIAC | 6003 | 2020-12-18 | Yes |
| 947-233 | NORTHVILLE | 6003 | 2020-12-21 | Yes |
| 947-234 | SOUTHFIELD | 6003 | 2020-12-21 | Yes |
| 947-235 | SOUTHFIELD | 6534 | 2021-03-08 | Yes |
| 947-236 | ROCHESTER | 2964 | 2021-05-26 | Yes |
| 947-237 | BIRMINGHAM | 6120 | 2020-11-09 | Yes |
| 947-238 | SOUTHFIELD | 6534 | 2021-11-01 | Yes |
| 947-239 | CLARKSTON | 2964 | 2021-06-28 | Yes |
| 947-240 | W BLOOMFLD | 2964 | 2021-09-08 | Yes |
| 947-241 | SOUTHFIELD | 6534 | 2022-01-05 | Yes |
| 947-242 | W BLOOMFLD | 543C | 2021-10-19 | Yes |
| 947-243 | TROY | 2964 | 2022-01-10 | Yes |
| 947-244 | ORTONVILLE | 543C | 2021-01-05 | Yes |
| 947-245 | DRAYTON PL | 490J | 2022-01-04 | Yes |
| 947-246 | FARMINGTON | 6534 | 2023-04-18 | Yes |
| 947-247 | HOLLY | 543C | 2021-05-19 | Yes |
| 947-248 | ROCHESTER | 543C | 2023-06-26 | Yes |
| 947-249 | HOLLY | 490J | 2022-01-04 | Yes |
| 947-250 | FARMINGTON | 6534 | 2022-04-15 | Yes |
| 947-251 | OXFORD | 490J | 2022-01-04 | Yes |
| 947-252 | AUBURN HTS | 6003 | 2017-09-01 | Yes |
| 947-253 | SOUTHFIELD | 6534 | 2022-10-28 | Yes |
| 947-254 | FARMINGTON | 6534 | 2022-09-14 | Yes |
| 947-255 | CLARKSTON | 6003 | 2006-06-02 | Yes |
| 947-256 | MILFDWH LK | 6534 | 2022-10-04 | Yes |
| 947-257 | PONTIAC | 490J | 2022-01-04 | Yes |
| 947-258 | CLARKSTON | 2964 | 2022-03-18 | Yes |
| 947-259 | SOUTHFIELD | 6534 | 2022-02-11 | Yes |
| 947-260 | BIRMINGHAM | 6534 | 2022-12-05 | Yes |
| 947-261 | BIRMINGHAM | 6534 | 2022-11-04 | Yes |
| 947-262 | AUBURN HTS | 6003 | 2022-12-01 | Yes |
| 947-263 | LAKE ORION | 516J | 2022-01-11 | Yes |
| 947-264 | CLARKSTON | 6003 | 2006-06-02 | Yes |
| 947-265 | NORTHVILLE | 543C | 2023-06-26 | Yes |
| 947-266 | MILFDWH LK | 543C | 2023-06-26 | Yes |
| 947-267 | COMMERCE | 543C | 2023-06-26 | Yes |
| 947-268 | FARMINGTON | 6534 | 2023-09-12 | Yes |
| 947-269 | ROCHESTER | 460K | 2023-10-24 | Yes |
| 947-270 | BIRMINGHAM | 6534 | 2023-12-10 | Yes |
| 947-271 | HOLLY | 2964 | 2024-02-16 | Yes |
| 947-272 | PONTIAC | 543C | 2021-01-12 | Yes |
| 947-273 | AUBURN HTS | 2964 | 2024-02-20 | Yes |
| 947-274 | BIRMINGHAM | 6534 | 2024-02-27 | Yes |
| 947-275 | FARMINGTON | 2964 | 2024-02-21 | Yes |
| 947-276 | PONTIAC | 770E | 2024-03-01 | Yes |
| 947-277 | ROYAL OAK | 2964 | 2024-03-15 | Yes |
| 947-278 | PONTIAC | 2964 | 2024-05-22 | Yes |
| 947-279 | FARMINGTON | 6534 | 2024-05-24 | Yes |
| 947-280 | BIRMINGHAM | 6534 | 2024-09-16 | Yes |
| 947-281 | SOUTHFIELD | 6003 | 2024-09-24 | Yes |
| 947-282 | SOUTHFIELD | 543C | — | Yes |
| 947-283 | FARMINGTON | 6534 | 2024-10-21 | Yes |
| 947-284 | BIRMINGHAM | 6534 | 2024-12-09 | Yes |
| 947-285 | BIRMINGHAM | 2964 | 2025-01-02 | Yes |
| 947-286 | FARMINGTON | 6534 | 2025-02-27 | Yes |
| 947-287 | PONTIAC | 770E | 2024-05-20 | Yes |
| 947-288 | ORTONVILLE | 6003 | 2005-03-04 | Yes |
| 947-289 | ORTONVILLE | 6003 | 2005-10-21 | Yes |
| 947-290 | FARMINGTON | 6534 | 2025-04-11 | Yes |
| 947-291 | BIRMINGHAM | 6534 | 2025-05-16 | Yes |
| 947-292 | BIRMINGHAM | 6534 | 2025-06-18 | Yes |
| 947-293 | FARMINGTON | 6534 | 2025-08-27 | Yes |
| 947-294 | BIRMINGHAM | 770E | 2025-08-11 | Yes |
| 947-295 | FARMINGTON | 6534 | 2025-10-10 | Yes |
| 947-296 | PONTIAC | 6534 | 2025-10-16 | Yes |
| 947-297 | BIRMINGHAM | 6534 | 2025-12-16 | Yes |
| 947-298 | BIRMINGHAM | 6534 | 2026-08-27 | Yes |
| 947-299 | BIRMINGHAM | 6534 | 2026-02-25 | 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.