All assignees
778 prefixes in 509 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 509-200 | WALLAWALLA | 6529 | — | Yes |
| 509-201 | ELLENSBURG | 792K | — | Yes |
| 509-202 | SPOKANE | 551G | — | Yes |
| 509-203 | GRANDVIEW | 6121 | 2003-01-07 | Yes |
| 509-204 | WALLAWALLA | 483E | 2001-12-11 | Yes |
| 509-205 | KENNEWICK | 6529 | 2003-02-20 | Yes |
| 509-206 | CLARKSTON | 5812 | 2022-05-23 | Yes |
| 509-207 | REPUBLIC | 6010 | 2004-08-13 | Yes |
| 509-208 | YAKIMA | 6270 | 2021-11-03 | Yes |
| 509-209 | SPOKANE | 7455 | 2004-08-27 | Yes |
| 509-210 | LIBERTY LK | 483E | — | — |
| 509-211 | XXXXXXXXXX | MULT | — | — |
| 509-212 | KENNEWICK | 6529 | 2013-07-23 | Yes |
| 509-213 | SPRINGDALE | 7421 | — | Yes |
| 509-214 | NEWMANLAKE | 483E | — | Yes |
| 509-215 | DAVENPORT | 6010 | 2004-09-20 | Yes |
| 509-216 | SPOKANE | 6010 | 2001-01-30 | — |
| 509-217 | SPOKANE | 6010 | 2001-01-30 | — |
| 509-218 | SPOKANE | 6010 | 2001-01-30 | — |
| 509-219 | STEVENSON | 5844 | 2004-05-05 | Yes |
| 509-220 | SPOKANE | 5812 | — | — |
| 509-221 | KENNEWICK | 4324 | 2013-08-07 | Yes |
| 509-222 | KENNEWICK | 4324 | — | Yes |
| 509-223 | LOOMIS | 4423 | — | Yes |
| 509-224 | CHENEY | 483E | 2022-09-08 | Yes |
| 509-225 | YAKIMA | 9638 | — | Yes |
| 509-226 | NEWMANLAKE | 9638 | — | Yes |
| 509-227 | SPOKANE | 9638 | — | Yes |
| 509-228 | SPOKANE | 9638 | — | Yes |
| 509-229 | UNIONTOWN | 2423 | — | Yes |
| 509-230 | SPOKANE | 6529 | — | — |
| 509-231 | KENNEWICK | 483E | — | Yes |
| 509-232 | SPOKANE | 7229 | — | Yes |
| 509-233 | LOON LAKE | 9638 | — | Yes |
| 509-234 | CONNELL | 2408 | — | Yes |
| 509-235 | CHENEY | 2408 | — | — |
| 509-236 | EDWALLTYLR | 2408 | — | Yes |
| 509-237 | EPHRATA | 6010 | 2002-03-25 | Yes |
| 509-238 | ELK-GRNBLF | 9638 | — | Yes |
| 509-239 | EDWALLTYLR | 2408 | — | Yes |
| 509-240 | WALLAWALLA | 6010 | 2002-06-14 | Yes |
| 509-241 | SPOKANE | 7229 | — | Yes |
| 509-242 | SPOKANE | 7229 | — | Yes |
| 509-243 | ASOTIN | 2404 | — | Yes |
| 509-244 | SPOKANE | 9638 | — | — |
| 509-245 | SPANGLE | 2408 | — | Yes |
| 509-246 | SOAP LAKE | 4324 | — | Yes |
| 509-247 | SPOKANE | 7455 | 2001-09-07 | — |
| 509-248 | YAKIMA | 9638 | — | — |
| 509-249 | YAKIMA | 9638 | — | — |
| 509-250 | GOLDENDALE | 6010 | 2002-05-31 | Yes |
| 509-251 | SPOKANE | 6529 | — | Yes |
| 509-252 | SPOKANE | 7455 | — | Yes |
| 509-253 | HARRINGTON | 2408 | — | Yes |
| 509-254 | CLARKSTON | 7229 | — | Yes |
| 509-255 | LIBERTY LK | 9638 | — | Yes |
| 509-256 | ANATONE | 2404 | — | Yes |
| 509-257 | SPRAGUE | 2408 | — | Yes |
| 509-258 | SPRINGDALE | 9638 | — | Yes |
| 509-259 | SPRAGUE | 1477 | — | Yes |
| 509-260 | CLE ELUM | 6010 | 2001-12-14 | Yes |
| 509-261 | GOLDENDALE | 6270 | — | Yes |
| 509-262 | DEER PARK | 9638 | — | Yes |
| 509-263 | SPOKANE | 6529 | — | Yes |
| 509-264 | WENATCHEE | 5562 | — | Yes |
| 509-265 | CONNELL | 2408 | — | Yes |
| 509-266 | MATHEWSCOR | 2408 | — | Yes |
| 509-267 | SPOKANE | 483E | — | — |
| 509-268 | YAKIMA | 427K | 2022-10-21 | Yes |
| 509-269 | CONNELL | 2408 | — | Yes |
| 509-270 | SPOKANE | 6529 | — | Yes |
| 509-271 | SPOKANE | 483E | — | — |
| 509-272 | SPOKANE | 483E | — | — |
| 509-273 | ELLENSBURG | 6529 | 2022-10-19 | Yes |
| 509-274 | SUNNYSIDE | 6010 | — | Yes |
| 509-275 | SPOKANE | 483E | — | — |
| 509-276 | DEER PARK | 9638 | — | Yes |
| 509-277 | SPOKANE | 483E | — | — |
| 509-278 | SPOKANE | 483E | — | — |
| 509-279 | SPOKANE | 7229 | — | Yes |
| 509-280 | SPOKANE | 6010 | — | Yes |
| 509-281 | WH SALMON | 6270 | — | Yes |
| 509-282 | CONNELL | 2408 | — | Yes |
| 509-283 | ROCKFORD | 4324 | — | Yes |
| 509-284 | TEKOA | 4324 | — | Yes |
| 509-285 | OAKESDALE | 4324 | — | Yes |
| 509-286 | ROCKFORD | 4324 | — | Yes |
| 509-287 | FARMINGTON | 4324 | — | Yes |
| 509-288 | COLFAX | 6121 | 2002-02-07 | Yes |
| 509-289 | EPHRATA | 6529 | — | Yes |
| 509-290 | SPOKANE | 6010 | — | Yes |
| 509-291 | ROCKFORD | 4324 | — | Yes |
| 509-292 | ELK-GRNBLF | 9638 | — | Yes |
| 509-293 | WENATCHEE | 6121 | — | Yes |
| 509-294 | SPOKANE | 6529 | 2001-08-31 | Yes |
| 509-295 | CLARKSTON | 7229 | — | Yes |
| 509-296 | PULLMAN | 6529 | 2022-10-03 | Yes |
| 509-297 | MATHEWSCOR | 2408 | — | Yes |
| 509-298 | MOSES LAKE | 671J | 2022-08-09 | Yes |
| 509-299 | MEDICAL LK | 2408 | — | 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.