Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 206 prefixes
752 of the 786 possible NXX blocks are assigned in area code 206 (95.7% of capacity), spread across 5 rate centers and 52 holders. The largest holders are QWEST CORPORATION (243 blocks, 32.3%), T-MOBILE USA, INC. (95 blocks, 12.6%), ONVOY, LLC - WA (72 blocks, 9.6%). Grouped by brand, Lumen accounts for 285 blocks; brand-attributable holders cover 96% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-23 to 2026-05-14, with 23 blocks handed out in 2016 alone. 414 blocks (55%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 244 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
752 assigned blocks of 786
5 rate centers
52 holders of record
55% in thousands-block pooling
Largest holders in 206
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| QWEST CORPORATION | Lumen | 243 | 32.3% |
| T-MOBILE USA, INC. | T-Mobile | 95 | 12.6% |
| ONVOY, LLC - WA | Onvoy | 72 | 9.6% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 58 | 7.7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | Verizon | 57 | 7.6% |
| LEVEL 3 COMMUNICATIONS, LLC - WA | Lumen | 34 | 4.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 33 | 4.4% |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | Allstream | 25 | 3.3% |
| SPOK, INC. | Spok | 23 | 3.1% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - WA | AT&T | 22 | 2.9% |
| METROPCS, INC. | T-Mobile | 8 | 1.1% |
| BANDWIDTH.COM CLEC, LLC - WA | Bandwidth | 7 | 0.9% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
All 752 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 206-200 | Verizon | SEATTLE | – | – | yes |
| 206-201 | AT&T | BAINBDG IS | – | yes | yes |
| 206-202 | Onvoy | SEATTLE | – | – | yes |
| 206-203 | Onvoy | SEATTLE | – | – | yes |
| 206-204 | Windstream | SEATTLE | – | yes | yes |
| 206-205 | Lumen | SEATTLE | – | – | yes |
| 206-206 | LEAP TELECOM, LLC | SEATTLE | 2023-01-31 | yes | yes |
| 206-207 | Onvoy | SEATTLE | 2015-11-19 | yes | yes |
| 206-208 | Onvoy | SEATTLE | – | – | yes |
| 206-209 | Onvoy | SEATTLE | 2012-03-12 | yes | yes |
| 206-210 | Onvoy | SEATTLE | – | – | yes |
| 206-212 | AT&T | DES MOINES | 2001-04-23 | yes | yes |
| 206-213 | Lumen | SEATTLE | – | – | yes |
| 206-214 | Lumen | SEATTLE | – | yes | yes |
| 206-215 | Lumen | SEATTLE | – | – | yes |
| 206-216 | Lumen | SEATTLE | – | – | yes |
| 206-217 | Lumen | SEATTLE | – | – | yes |
| 206-218 | Lumen | SEATTLE | – | yes | yes |
| 206-219 | Lumen | SEATTLE | – | yes | yes |
| 206-220 | Lumen | SEATTLE | – | – | yes |
| 206-221 | Lumen | SEATTLE | – | – | yes |
| 206-222 | Onvoy | SEATTLE | – | – | yes |
| 206-223 | Lumen | SEATTLE | – | – | yes |
| 206-224 | Lumen | SEATTLE | – | – | yes |
| 206-225 | Lumen | SEATTLE | – | yes | yes |
| 206-226 | T-Mobile | SEATTLE | – | – | yes |
| 206-227 | T-Mobile | SEATTLE | – | – | yes |
| 206-228 | T-Mobile | SEATTLE | – | – | yes |
| 206-229 | T-Mobile | SEATTLE | – | – | yes |
| 206-230 | Lumen | SEATTLE | – | yes | yes |
| 206-231 | Lumen | DES MOINES | 2017-06-13 | yes | yes |
| 206-232 | Lumen | SEATTLE | – | – | yes |
| 206-233 | Lumen | SEATTLE | – | – | yes |
| 206-234 | T-Mobile | SEATTLE | – | – | yes |
| 206-235 | T-Mobile | SEATTLE | – | – | yes |
| 206-236 | Lumen | SEATTLE | – | – | yes |
| 206-237 | Onvoy | RICHMNDBCH | – | – | yes |
| 206-238 | Onvoy | BAINBDG IS | – | – | yes |
| 206-239 | Lumen | SEATTLE | – | yes | yes |
| 206-240 | AT&T | SEATTLE | – | – | yes |
| 206-241 | Lumen | SEATTLE | – | – | yes |
| 206-242 | Lumen | SEATTLE | – | – | yes |
| 206-243 | Lumen | SEATTLE | – | – | yes |
| 206-244 | Lumen | SEATTLE | – | – | yes |
| 206-245 | Allstream | SEATTLE | 2004-01-27 | yes | yes |
| 206-246 | Lumen | SEATTLE | – | – | yes |
| 206-247 | Windstream | SEATTLE | 2017-08-24 | yes | yes |
| 206-248 | Lumen | SEATTLE | – | – | yes |
| 206-249 | Allstream | DES MOINES | 2001-01-24 | yes | yes |
| 206-250 | T-Mobile | SEATTLE | – | yes | yes |
| 206-251 | T-Mobile | SEATTLE | – | yes | yes |
| 206-252 | AT&T | SEATTLE | – | – | yes |
| 206-254 | Lumen | SEATTLE | – | – | yes |
| 206-255 | T-Mobile | SEATTLE | – | yes | yes |
| 206-256 | Lumen | SEATTLE | – | – | yes |
| 206-257 | Comcast | SEATTLE | 2005-01-05 | yes | yes |
| 206-258 | Comcast | SEATTLE | 2013-05-15 | yes | yes |
| 206-259 | Lumen | VASHON | 2004-09-01 | yes | yes |
| 206-260 | Onvoy | SEATTLE | – | – | yes |
| 206-261 | T-Mobile | SEATTLE | – | yes | yes |
| 206-262 | Lumen | SEATTLE | – | – | yes |
| 206-263 | Lumen | SEATTLE | – | – | yes |
| 206-264 | Lumen | SEATTLE | – | – | yes |
| 206-265 | Lumen | SEATTLE | – | yes | yes |
| 206-266 | Lumen | SEATTLE | 2001-04-23 | – | yes |
| 206-267 | Verizon | SEATTLE | – | yes | yes |
| 206-268 | AT&T | SEATTLE | 2001-04-23 | yes | yes |
| 206-269 | Lumen | SEATTLE | – | – | yes |
| 206-270 | Lumen | SEATTLE | – | – | yes |
| 206-271 | T-Mobile | SEATTLE | – | yes | yes |
| 206-272 | Lumen | SEATTLE | – | yes | yes |
| 206-273 | Lumen | SEATTLE | – | – | yes |
| 206-274 | Lumen | SEATTLE | 2002-08-23 | – | yes |
| 206-275 | Lumen | SEATTLE | – | – | yes |
| 206-276 | Verizon | SEATTLE | – | – | yes |
| 206-277 | Lumen | SEATTLE | – | – | yes |
| 206-278 | Onvoy | SEATTLE | – | – | yes |
| 206-279 | Onvoy | SEATTLE | – | – | yes |
| 206-280 | T-Mobile | SEATTLE | – | yes | yes |
| 206-281 | Lumen | SEATTLE | – | – | yes |
| 206-282 | Lumen | SEATTLE | – | – | yes |
| 206-283 | Lumen | SEATTLE | – | – | yes |
| 206-284 | Lumen | SEATTLE | – | – | yes |
| 206-285 | Lumen | SEATTLE | – | – | yes |
| 206-286 | Lumen | SEATTLE | – | – | yes |
| 206-287 | Lumen | SEATTLE | – | – | yes |
| 206-288 | AT&T | SEATTLE | – | yes | yes |
| 206-289 | AT&T | RICHMNDBCH | – | yes | yes |
| 206-290 | T-Mobile | SEATTLE | – | yes | yes |
| 206-291 | AT&T | SEATTLE | – | yes | yes |
| 206-292 | Lumen | SEATTLE | – | – | yes |
| 206-293 | T-Mobile | SEATTLE | – | yes | yes |
| 206-294 | T-Mobile | SEATTLE | 2014-03-28 | yes | yes |
| 206-295 | AT&T | SEATTLE | – | – | yes |
| 206-296 | Lumen | SEATTLE | – | – | yes |
| 206-297 | Lumen | SEATTLE | – | – | yes |
| 206-298 | Lumen | SEATTLE | – | – | yes |
| 206-299 | Onvoy | SEATTLE | – | – | yes |
| 206-300 | Verizon | SEATTLE | – | – | yes |
| 206-301 | Lumen | SEATTLE | – | – | yes |
| 206-302 | Lumen | SEATTLE | – | yes | yes |
| 206-303 | Lumen | SEATTLE | – | yes | yes |
| 206-304 | AT&T | DES MOINES | 2001-02-20 | yes | yes |
| 206-305 | Verizon | SEATTLE | 2013-07-18 | yes | yes |
| 206-306 | Lumen | SEATTLE | – | yes | yes |
| 206-307 | Onvoy | SEATTLE | 2007-05-07 | yes | yes |
| 206-308 | CORETEL WASHINGTON, INC. - WA | SEATTLE | – | yes | yes |
| 206-309 | Onvoy | SEATTLE | – | – | yes |
| 206-310 | AT&T | SEATTLE | – | – | yes |
| 206-312 | Onvoy | BAINBDG IS | – | – | yes |
| 206-313 | T-Mobile | SEATTLE | – | – | yes |
| 206-314 | Spok | SEATTLE | – | – | yes |
| 206-315 | Verizon | SEATTLE | – | yes | yes |
| 206-316 | Telnyx | SEATTLE | – | yes | yes |
| 206-317 | Allstream | BAINBDG IS | 2009-08-03 | yes | yes |
| 206-318 | Lumen | SEATTLE | – | – | yes |
| 206-319 | Verizon | BAINBDG IS | – | yes | yes |
| 206-320 | Lumen | SEATTLE | – | – | yes |
| 206-321 | AT&T | SEATTLE | – | – | yes |
| 206-322 | Lumen | SEATTLE | – | – | yes |
| 206-323 | Lumen | SEATTLE | – | – | yes |
| 206-324 | Lumen | SEATTLE | – | – | yes |
| 206-325 | Lumen | SEATTLE | – | – | yes |
| 206-326 | Lumen | SEATTLE | – | yes | yes |
| 206-327 | Verizon | SEATTLE | – | yes | yes |
| 206-328 | Lumen | SEATTLE | – | – | yes |
| 206-329 | Lumen | SEATTLE | – | – | yes |
| 206-330 | Lumen | SEATTLE | – | yes | yes |
| 206-331 | AT&T | SEATTLE | – | yes | yes |
| 206-332 | Lumen | SEATTLE | – | – | yes |
| 206-333 | Onvoy | SEATTLE | – | – | yes |
| 206-334 | T-Mobile | SEATTLE | – | – | yes |
| 206-335 | T-Mobile | SEATTLE | – | – | yes |
| 206-336 | Verizon | SEATTLE | – | – | yes |
| 206-337 | Onvoy | SEATTLE | – | – | yes |
| 206-338 | Onvoy | SEATTLE | – | – | yes |
| 206-339 | Onvoy | SEATTLE | – | – | yes |
| 206-340 | Lumen | SEATTLE | – | – | yes |
| 206-341 | Lumen | SEATTLE | – | yes | yes |
| 206-342 | Lumen | SEATTLE | – | – | yes |
| 206-343 | Lumen | SEATTLE | – | – | yes |
| 206-344 | Lumen | SEATTLE | – | – | yes |
| 206-345 | Lumen | SEATTLE | – | – | yes |
| 206-346 | Lumen | SEATTLE | – | – | yes |
| 206-347 | Lumen | BAINBDG IS | – | yes | yes |
| 206-348 | Verizon | SEATTLE | 2013-10-22 | yes | yes |
| 206-349 | T-Mobile | SEATTLE | – | – | yes |
| 206-350 | Onvoy | SEATTLE | – | – | yes |
| 206-351 | AT&T | SEATTLE | – | – | yes |
| 206-352 | Lumen | SEATTLE | – | – | yes |
| 206-353 | T-Mobile | SEATTLE | – | – | yes |
| 206-354 | T-Mobile | SEATTLE | – | – | yes |
| 206-355 | T-Mobile | SEATTLE | – | – | yes |
| 206-356 | T-Mobile | SEATTLE | – | – | yes |
| 206-357 | Verizon | SEATTLE | – | yes | yes |
| 206-358 | Lumen | SEATTLE | – | – | yes |
| 206-359 | Lumen | SEATTLE | – | yes | yes |
| 206-360 | Onvoy | SEATTLE | 2022-04-04 | yes | yes |
| 206-361 | Lumen | SEATTLE | – | – | yes |
| 206-362 | Lumen | SEATTLE | – | – | yes |
| 206-363 | Lumen | SEATTLE | – | – | yes |
| 206-364 | Lumen | SEATTLE | – | – | yes |
| 206-365 | Lumen | SEATTLE | – | – | yes |
| 206-366 | Lumen | SEATTLE | – | yes | yes |
| 206-367 | Lumen | SEATTLE | – | – | yes |
| 206-368 | Lumen | SEATTLE | – | – | yes |
| 206-369 | AT&T | SEATTLE | – | – | yes |
| 206-370 | Lumen | SEATTLE | – | yes | yes |
| 206-371 | T-Mobile | SEATTLE | – | yes | yes |
| 206-372 | T-Mobile | SEATTLE | – | – | yes |
| 206-373 | Lumen | SEATTLE | – | yes | yes |
| 206-374 | Lumen | SEATTLE | – | – | yes |
| 206-375 | Verizon | SEATTLE | – | yes | yes |
| 206-376 | T-Mobile | SEATTLE | – | yes | yes |
| 206-377 | Lumen | SEATTLE | – | yes | yes |
| 206-378 | Lumen | SEATTLE | – | – | yes |
| 206-379 | Verizon | SEATTLE | 2014-09-18 | yes | yes |
| 206-380 | T-Mobile | SEATTLE | – | yes | yes |
| 206-381 | Lumen | SEATTLE | – | – | yes |
| 206-382 | Lumen | SEATTLE | – | – | yes |
| 206-383 | T-Mobile | SEATTLE | – | – | yes |
| 206-384 | Lumen | SEATTLE | – | yes | yes |
| 206-385 | Onvoy | SEATTLE | 2019-04-25 | yes | yes |
| 206-386 | Lumen | SEATTLE | – | – | yes |
| 206-387 | T-Mobile | SEATTLE | – | yes | yes |
| 206-388 | Allstream | SEATTLE | – | yes | yes |
| 206-389 | Lumen | SEATTLE | – | – | yes |
| 206-390 | AT&T | SEATTLE | – | – | yes |
| 206-391 | T-Mobile | SEATTLE | – | yes | yes |
| 206-392 | Allstream | SEATTLE | 2001-02-28 | – | yes |
| 206-393 | AT&T | SEATTLE | 2002-06-17 | yes | yes |
| 206-394 | Lumen | SEATTLE | – | – | yes |
| 206-395 | Bandwidth | SEATTLE | 2009-10-01 | yes | yes |
| 206-396 | T-Mobile | SEATTLE | – | yes | yes |
| 206-397 | T-Mobile | SEATTLE | – | yes | yes |
| 206-398 | Lumen | SEATTLE | – | yes | yes |
| 206-399 | AT&T | SEATTLE | – | – | yes |
| 206-400 | Verizon | DES MOINES | 2001-03-20 | – | yes |
| 206-401 | Verizon | RICHMNDBCH | 2016-03-08 | yes | yes |
| 206-402 | ELTOPIA COMMUNICATIONS, LLC - WA | SEATTLE | 2008-05-22 | yes | yes |
| 206-403 | AT&T | SEATTLE | – | yes | yes |
| 206-404 | Lumen | SEATTLE | – | – | yes |
| 206-405 | Lumen | SEATTLE | – | yes | yes |
| 206-406 | Verizon | SEATTLE | – | – | yes |
| 206-407 | Verizon | SEATTLE | – | yes | yes |
| 206-408 | Verizon | VASHON | – | yes | yes |
| 206-409 | AT&T | SEATTLE | – | – | yes |
| 206-410 | Lumen | SEATTLE | – | yes | yes |
| 206-412 | T-Mobile | SEATTLE | – | – | yes |
| 206-413 | Verizon | SEATTLE | 2016-01-15 | yes | yes |
| 206-414 | Onvoy | SEATTLE | 2008-08-01 | yes | yes |
| 206-415 | Onvoy | SEATTLE | – | – | yes |
| 206-416 | Lumen | SEATTLE | – | – | yes |
| 206-417 | Lumen | SEATTLE | – | – | yes |
| 206-418 | Lumen | SEATTLE | – | yes | yes |
| 206-419 | AT&T | SEATTLE | – | – | yes |
| 206-420 | Onvoy | SEATTLE | 2006-03-09 | yes | yes |
| 206-421 | Lumen | SEATTLE | – | – | yes |
| 206-422 | AT&T | SEATTLE | 2006-04-26 | yes | yes |
| 206-423 | T-Mobile | SEATTLE | – | yes | yes |
| 206-424 | Onvoy | SEATTLE | – | – | yes |
| 206-426 | Onvoy | SEATTLE | – | – | yes |
| 206-427 | AT&T | SEATTLE | – | – | yes |
| 206-428 | Verizon | SEATTLE | – | yes | yes |
| 206-429 | Verizon | DES MOINES | – | yes | yes |
| 206-430 | Lumen | SEATTLE | 2010-10-05 | yes | yes |
| 206-431 | Lumen | SEATTLE | – | – | yes |
| 206-432 | Allstream | SEATTLE | 2008-10-01 | yes | yes |
| 206-433 | Lumen | SEATTLE | – | – | yes |
| 206-434 | AT&T | SEATTLE | 2006-04-26 | yes | yes |
| 206-435 | Lumen | SEATTLE | 2013-11-01 | yes | yes |
| 206-436 | Allstream | SEATTLE | – | yes | yes |
| 206-437 | Verizon | SEATTLE | – | yes | yes |
| 206-438 | Verizon | SEATTLE | – | yes | yes |
| 206-439 | Lumen | SEATTLE | – | – | yes |
| 206-440 | Lumen | SEATTLE | – | yes | yes |
| 206-441 | Lumen | SEATTLE | – | – | yes |
| 206-442 | Lumen | SEATTLE | – | – | yes |
| 206-443 | Lumen | SEATTLE | – | – | yes |
| 206-444 | Lumen | SEATTLE | – | – | yes |
| 206-445 | Onvoy | SEATTLE | – | yes | yes |
| 206-446 | T-Mobile | SEATTLE | 2007-04-26 | yes | yes |
| 206-447 | Lumen | SEATTLE | – | – | yes |
| 206-448 | Lumen | SEATTLE | – | – | yes |
| 206-449 | Lumen | SEATTLE | – | – | yes |
| 206-450 | Verizon | SEATTLE | – | yes | yes |
| 206-451 | Onvoy | BAINBDG IS | 2006-09-21 | yes | yes |
| 206-452 | Lumen | SEATTLE | 2008-05-15 | yes | yes |
| 206-453 | T-Mobile | SEATTLE | 2007-08-15 | yes | yes |
| 206-454 | Allstream | SEATTLE | 2012-02-08 | yes | yes |
| 206-455 | Lumen | SEATTLE | 2007-08-15 | yes | yes |
| 206-456 | Lumen | SEATTLE | – | yes | yes |
| 206-457 | AT&T | SEATTLE | – | yes | yes |
| 206-458 | T-Mobile | SEATTLE | 2008-05-13 | yes | yes |
| 206-459 | Verizon | SEATTLE | – | – | yes |
| 206-460 | Onvoy | DES MOINES | 2016-03-10 | yes | yes |
| 206-461 | Lumen | SEATTLE | – | – | yes |
| 206-462 | Verizon | SEATTLE | – | yes | yes |
| 206-463 | Lumen | VASHON | – | – | yes |
| 206-464 | Lumen | SEATTLE | – | – | yes |
| 206-465 | AT&T | SEATTLE | – | – | yes |
| 206-466 | T-Mobile | SEATTLE | – | yes | yes |
| 206-467 | Lumen | SEATTLE | – | – | yes |
| 206-468 | T-Mobile | SEATTLE | 2014-09-08 | yes | yes |
| 206-469 | Lumen | SEATTLE | – | – | yes |
| 206-470 | Lumen | SEATTLE | – | yes | yes |
| 206-471 | Verizon | SEATTLE | 2014-08-19 | yes | yes |
| 206-472 | Onvoy | SEATTLE | 2016-03-10 | yes | yes |
| 206-473 | AT&T | SEATTLE | 2006-10-10 | yes | yes |
| 206-474 | Allstream | SEATTLE | 2014-01-02 | yes | yes |
| 206-475 | AT&T | SEATTLE | 2015-09-24 | yes | yes |
| 206-476 | T-Mobile | SEATTLE | 2014-09-24 | yes | yes |
| 206-477 | Lumen | SEATTLE | 2012-03-19 | yes | yes |
| 206-478 | T-Mobile | SEATTLE | – | yes | yes |
| 206-479 | Onvoy | SEATTLE | – | – | yes |
| 206-480 | Lumen | SEATTLE | 2017-06-09 | yes | yes |
| 206-481 | Lumen | SEATTLE | 2016-05-05 | yes | yes |
| 206-482 | AT&T | SEATTLE | 2016-01-21 | yes | yes |
| 206-483 | T-Mobile | SEATTLE | 2016-05-24 | yes | yes |
| 206-484 | AT&T | SEATTLE | – | – | yes |
| 206-485 | Bandwidth | SEATTLE | 2016-03-10 | yes | yes |
| 206-486 | Peerless | SEATTLE | 2012-01-25 | yes | yes |
| 206-487 | Verizon | SEATTLE | 2016-06-27 | yes | yes |
| 206-488 | T-Mobile | BAINBDG IS | 2014-10-09 | yes | yes |
| 206-489 | T-Mobile | SEATTLE | 2012-12-20 | yes | yes |
| 206-490 | Lumen | SEATTLE | – | – | yes |
| 206-491 | Verizon | SEATTLE | – | – | yes |
| 206-492 | Verizon | SEATTLE | 2015-09-25 | yes | yes |
| 206-493 | TPx | SEATTLE | – | yes | yes |
| 206-494 | Verizon | SEATTLE | – | yes | yes |
| 206-495 | Onvoy | SEATTLE | – | yes | yes |
| 206-496 | Verizon | SEATTLE | – | yes | yes |
| 206-497 | Onvoy | RICHMNDBCH | 2006-11-17 | yes | yes |
| 206-498 | Verizon | SEATTLE | – | – | yes |
| 206-499 | AT&T | SEATTLE | – | – | yes |
| 206-500 | Lumen | SEATTLE | – | yes | yes |
| 206-501 | T-Mobile | SEATTLE | – | yes | yes |
| 206-502 | Peerless | BAINBDG IS | 2016-11-16 | yes | yes |
| 206-503 | T-Mobile | SEATTLE | 2016-11-21 | yes | yes |
| 206-504 | Lumen | SEATTLE | – | yes | yes |
| 206-505 | AT&T | SEATTLE | 2001-04-23 | – | yes |
| 206-506 | Lumen | SEATTLE | – | yes | yes |
| 206-507 | Verizon | SEATTLE | 2018-08-30 | yes | yes |
| 206-508 | Lumen | SEATTLE | – | – | yes |
| 206-509 | Lumen | SEATTLE | – | – | yes |
| 206-510 | T-Mobile | SEATTLE | – | yes | yes |
| 206-512 | Lumen | SEATTLE | 2011-06-08 | yes | yes |
| 206-513 | AIRESPRING, INC. | SEATTLE | 2018-10-05 | yes | yes |
| 206-514 | Verizon | SEATTLE | 2019-10-24 | yes | yes |
| 206-515 | Lumen | SEATTLE | – | – | yes |
| 206-516 | Lumen | SEATTLE | – | yes | yes |
| 206-517 | Lumen | SEATTLE | – | – | yes |
| 206-518 | Allstream | SEATTLE | 2007-08-27 | yes | yes |
| 206-519 | AT&T | SEATTLE | 2014-07-03 | yes | yes |
| 206-520 | Lumen | SEATTLE | – | – | yes |
| 206-521 | Lumen | SEATTLE | – | – | yes |
| 206-522 | Lumen | SEATTLE | – | – | yes |
| 206-523 | Lumen | SEATTLE | – | – | yes |
| 206-524 | Lumen | SEATTLE | – | – | yes |
| 206-525 | Lumen | SEATTLE | – | – | yes |
| 206-526 | Lumen | SEATTLE | – | – | yes |
| 206-527 | Lumen | SEATTLE | – | – | yes |
| 206-528 | Lumen | SEATTLE | – | – | yes |
| 206-529 | Lumen | SEATTLE | – | yes | yes |
| 206-530 | T-Mobile | SEATTLE | 2019-01-23 | yes | yes |
| 206-531 | Lumen | SEATTLE | 2018-04-23 | yes | yes |
| 206-532 | T-Mobile | SEATTLE | 2021-06-17 | yes | yes |
| 206-533 | Ziply Fiber | RICHMNDBCH | – | yes | yes |
| 206-534 | Spok | SEATTLE | – | – | yes |
| 206-535 | T-Mobile | SEATTLE | 2011-08-09 | yes | yes |
| 206-536 | Onvoy | SEATTLE | 2017-09-07 | yes | yes |
| 206-537 | T-Mobile | BAINBDG IS | 2019-08-20 | yes | yes |
| 206-538 | Windstream | SEATTLE | 2011-10-04 | yes | yes |
| 206-539 | Verizon | SEATTLE | 2015-09-30 | yes | yes |
| 206-540 | Spok | SEATTLE | – | – | yes |
| 206-541 | Spok | SEATTLE | – | – | yes |
| 206-542 | Ziply Fiber | RICHMNDBCH | – | – | yes |
| 206-543 | RINGSQUARED TELECOM LLC | SEATTLE | – | – | yes |
| 206-544 | Lumen | SEATTLE | – | yes | yes |
| 206-545 | Lumen | SEATTLE | – | – | yes |
| 206-546 | Ziply Fiber | RICHMNDBCH | – | – | yes |
| 206-547 | Lumen | SEATTLE | – | – | yes |
| 206-548 | Lumen | SEATTLE | – | yes | yes |
| 206-549 | T-Mobile | SEATTLE | 2012-10-04 | yes | yes |
| 206-550 | Verizon | SEATTLE | – | – | yes |
| 206-551 | T-Mobile | SEATTLE | – | yes | yes |
| 206-552 | Bandwidth | SEATTLE | 2008-06-18 | yes | yes |
| 206-553 | Lumen | SEATTLE | – | yes | yes |
| 206-554 | Lumen | SEATTLE | – | yes | yes |
| 206-556 | Verizon | SEATTLE | 2014-06-11 | yes | yes |
| 206-557 | AT&T | SEATTLE | 2012-10-09 | yes | yes |
| 206-558 | Onvoy | BAINBDG IS | 2020-05-29 | yes | yes |
| 206-559 | Spok | SEATTLE | – | – | yes |
| 206-560 | Spok | SEATTLE | 2001-01-23 | – | yes |
| 206-561 | Verizon | SEATTLE | 2020-03-26 | yes | yes |
| 206-562 | IP HORIZON LLC | SEATTLE | 2019-04-03 | yes | yes |
| 206-563 | Spok | SEATTLE | – | – | yes |
| 206-565 | Onvoy | BAINBDG IS | 2016-05-04 | yes | yes |
| 206-566 | Onvoy | SEATTLE | – | yes | yes |
| 206-567 | Lumen | VASHON | – | yes | yes |
| 206-568 | Lumen | SEATTLE | – | – | yes |
| 206-569 | Lumen | RICHMNDBCH | – | yes | yes |
| 206-570 | American Messaging | SEATTLE | – | – | yes |
| 206-571 | T-Mobile | SEATTLE | – | yes | yes |
| 206-572 | Verizon | SEATTLE | 2019-11-11 | yes | yes |
| 206-573 | Verizon | SEATTLE | 2016-08-18 | yes | yes |
| 206-574 | Lumen | SEATTLE | – | yes | yes |
| 206-575 | Lumen | SEATTLE | – | – | yes |
| 206-576 | Lumen | SEATTLE | – | – | yes |
| 206-577 | Lumen | SEATTLE | – | yes | yes |
| 206-578 | T-Mobile | DES MOINES | – | yes | yes |
| 206-579 | T-Mobile | SEATTLE | – | yes | yes |
| 206-580 | Lumen | SEATTLE | 2019-11-04 | yes | yes |
| 206-581 | CORETEL WASHINGTON, INC. - WA | SEATTLE | – | yes | yes |
| 206-582 | Allstream | SEATTLE | 2013-07-30 | yes | yes |
| 206-583 | Lumen | SEATTLE | – | – | yes |
| 206-584 | Lumen | SEATTLE | 2019-02-12 | yes | yes |
| 206-585 | Lumen | SEATTLE | – | – | yes |
| 206-586 | T-Mobile | SEATTLE | 2019-09-30 | yes | yes |
| 206-587 | Lumen | SEATTLE | – | – | yes |
| 206-588 | Comcast | SEATTLE | 2008-05-15 | yes | yes |
| 206-589 | Onvoy | RICHMNDBCH | 2020-05-29 | yes | yes |
| 206-590 | Bandwidth | SEATTLE | 2020-08-20 | yes | yes |
| 206-591 | T-Mobile | BAINBDG IS | 2019-05-20 | yes | yes |
| 206-592 | Lumen | DES MOINES | – | yes | yes |
| 206-593 | Verizon | SEATTLE | 2020-04-07 | yes | yes |
| 206-594 | NUSO, LLC | SEATTLE | 2020-04-22 | yes | yes |
| 206-595 | Verizon | SEATTLE | – | – | yes |
| 206-596 | INTRADO COMMUNICATIONS, LLC | SEATTLE | 2012-02-08 | yes | yes |
| 206-597 | Lumen | SEATTLE | 2014-04-04 | yes | yes |
| 206-598 | Lumen | SEATTLE | – | – | yes |
| 206-599 | Lumen | SEATTLE | – | yes | yes |
| 206-600 | Onvoy | SEATTLE | – | yes | yes |
| 206-601 | AT&T | SEATTLE | – | – | yes |
| 206-602 | Lumen | SEATTLE | 2013-05-09 | yes | yes |
| 206-603 | Charter | VASHON | – | yes | yes |
| 206-604 | AT&T | SEATTLE | – | – | yes |
| 206-605 | AT&T | SEATTLE | – | – | yes |
| 206-606 | Allstream | SEATTLE | 2016-04-01 | yes | yes |
| 206-607 | Verizon | SEATTLE | – | yes | yes |
| 206-608 | T-Mobile | RICHMNDBCH | 2023-11-20 | yes | yes |
| 206-609 | T-Mobile | SEATTLE | 2024-08-06 | yes | yes |
| 206-610 | T-Mobile | RICHMNDBCH | 2024-08-30 | yes | yes |
| 206-612 | AT&T | SEATTLE | – | – | yes |
| 206-613 | Lumen | SEATTLE | – | yes | yes |
| 206-614 | Onvoy | SEATTLE | 2020-06-15 | yes | yes |
| 206-615 | Lumen | SEATTLE | – | – | yes |
| 206-616 | RINGSQUARED TELECOM LLC | SEATTLE | – | – | yes |
| 206-617 | AT&T | SEATTLE | – | – | yes |
| 206-618 | AT&T | SEATTLE | – | – | yes |
| 206-619 | AT&T | SEATTLE | – | – | yes |
| 206-620 | Vonage | SEATTLE | 2017-03-15 | yes | yes |
| 206-621 | Lumen | SEATTLE | – | – | yes |
| 206-622 | Lumen | SEATTLE | – | – | yes |
| 206-623 | Lumen | SEATTLE | – | – | yes |
| 206-624 | Lumen | SEATTLE | – | – | yes |
| 206-625 | Lumen | SEATTLE | – | – | yes |
| 206-626 | Lumen | SEATTLE | – | – | yes |
| 206-627 | AT&T | DES MOINES | 2020-03-26 | yes | yes |
| 206-628 | Lumen | SEATTLE | – | – | yes |
| 206-629 | Lumen | RICHMNDBCH | – | yes | yes |
| 206-630 | Lumen | SEATTLE | 2015-08-20 | yes | yes |
| 206-631 | T-Mobile | SEATTLE | 2007-03-29 | yes | yes |
| 206-632 | Lumen | SEATTLE | – | – | yes |
| 206-633 | Lumen | SEATTLE | – | – | yes |
| 206-634 | Lumen | SEATTLE | – | – | yes |
| 206-635 | CSC WIRELESS, LLC | SEATTLE | 2020-07-13 | yes | yes |
| 206-636 | ADVANCED TELECOM SOLUTIONS, LLC | SEATTLE | 2018-06-25 | yes | yes |
| 206-637 | T-Mobile | SEATTLE | 2015-08-27 | yes | yes |
| 206-638 | IP HORIZON LLC | SEATTLE | 2021-03-02 | yes | yes |
| 206-639 | Onvoy | SEATTLE | 2011-12-16 | yes | yes |
| 206-640 | Allstream | SEATTLE | 2019-02-06 | yes | yes |
| 206-641 | Verizon | SEATTLE | 2011-11-09 | yes | yes |
| 206-642 | Spok | SEATTLE | – | – | yes |
| 206-643 | NUSO, LLC | SEATTLE | 2011-12-12 | yes | yes |
| 206-644 | Comcast | SEATTLE | 2020-10-23 | yes | yes |
| 206-645 | Spok | SEATTLE | – | – | yes |
| 206-646 | Lumen | SEATTLE | 2016-08-18 | yes | yes |
| 206-647 | Onvoy | RICHMNDBCH | 2022-07-28 | yes | yes |
| 206-649 | Onvoy | SEATTLE | 2020-12-30 | yes | yes |
| 206-650 | T-Mobile | SEATTLE | – | yes | yes |
| 206-651 | AT&T | DES MOINES | – | yes | yes |
| 206-652 | Lumen | SEATTLE | – | – | yes |
| 206-653 | Lumen | DES MOINES | – | yes | yes |
| 206-654 | Lumen | SEATTLE | – | – | yes |
| 206-655 | AT&T | SEATTLE | – | – | yes |
| 206-656 | Onvoy | SEATTLE | 2021-01-19 | yes | yes |
| 206-657 | T-Mobile | SEATTLE | 2020-10-23 | yes | yes |
| 206-658 | Lumen | SEATTLE | – | yes | yes |
| 206-659 | Comcast | SEATTLE | 2008-10-27 | yes | yes |
| 206-660 | AT&T | SEATTLE | – | – | yes |
| 206-661 | AT&T | SEATTLE | – | yes | yes |
| 206-662 | AT&T | SEATTLE | – | – | yes |
| 206-663 | Spok | SEATTLE | – | – | yes |
| 206-664 | AT&T | SEATTLE | – | yes | yes |
| 206-665 | T-Mobile | SEATTLE | 2018-09-20 | yes | yes |
| 206-666 | Onvoy | SEATTLE | – | yes | yes |
| 206-667 | Lumen | SEATTLE | – | – | yes |
| 206-668 | Verizon | SEATTLE | 2015-07-29 | yes | yes |
| 206-669 | AT&T | SEATTLE | – | – | yes |
| 206-670 | STRATUS NETWORKS | SEATTLE | 2021-03-10 | yes | yes |
| 206-671 | T-Mobile | SEATTLE | 2021-09-07 | yes | yes |
| 206-672 | Onvoy | SEATTLE | 2020-09-29 | yes | yes |
| 206-673 | Lumen | SEATTLE | – | yes | yes |
| 206-674 | AT&T | SEATTLE | – | – | yes |
| 206-675 | Lumen | SEATTLE | – | – | yes |
| 206-676 | AT&T | SEATTLE | – | yes | yes |
| 206-677 | Verizon | SEATTLE | 2020-11-11 | yes | yes |
| 206-678 | Verizon | SEATTLE | – | yes | yes |
| 206-679 | T-Mobile | SEATTLE | – | yes | yes |
| 206-680 | Spok | SEATTLE | – | – | yes |
| 206-681 | Verizon | SEATTLE | – | yes | yes |
| 206-682 | Lumen | SEATTLE | – | – | yes |
| 206-683 | T-Mobile | SEATTLE | – | yes | yes |
| 206-684 | Lumen | SEATTLE | – | – | yes |
| 206-685 | Lumen | SEATTLE | – | – | yes |
| 206-686 | Lumen | SEATTLE | – | – | yes |
| 206-687 | Onvoy | SEATTLE | – | yes | yes |
| 206-688 | Lumen | SEATTLE | 2019-04-22 | yes | yes |
| 206-689 | Lumen | SEATTLE | – | – | yes |
| 206-690 | Onvoy | SEATTLE | 2021-03-31 | yes | yes |
| 206-691 | Lumen | SEATTLE | – | yes | yes |
| 206-692 | Lumen | SEATTLE | – | – | yes |
| 206-693 | Windstream | SEATTLE | 2014-10-22 | yes | yes |
| 206-694 | AT&T | SEATTLE | 2001-04-23 | yes | yes |
| 206-695 | AT&T | SEATTLE | 2001-04-23 | yes | yes |
| 206-696 | AT&T | SEATTLE | – | yes | yes |
| 206-697 | Verizon | SEATTLE | – | yes | yes |
| 206-698 | T-Mobile | SEATTLE | 2016-08-10 | yes | yes |
| 206-699 | T-Mobile | SEATTLE | 2024-09-16 | yes | yes |
| 206-701 | Verizon | SEATTLE | – | yes | yes |
| 206-702 | Lumen | SEATTLE | 2017-10-24 | yes | yes |
| 206-703 | Onvoy | SEATTLE | – | yes | yes |
| 206-704 | Onvoy | SEATTLE | 2022-05-23 | yes | yes |
| 206-705 | Windstream | SEATTLE | 2020-04-01 | yes | yes |
| 206-706 | Lumen | SEATTLE | – | – | yes |
| 206-707 | IP HORIZON LLC | SEATTLE | 2009-06-23 | yes | yes |
| 206-708 | Verizon | SEATTLE | – | yes | yes |
| 206-709 | Lumen | SEATTLE | – | yes | yes |
| 206-710 | T-Mobile | SEATTLE | 2021-08-17 | yes | yes |
| 206-712 | T-Mobile | SEATTLE | 2016-12-21 | yes | yes |
| 206-713 | Verizon | SEATTLE | – | – | yes |
| 206-714 | Verizon | SEATTLE | – | – | yes |
| 206-715 | Verizon | SEATTLE | – | – | yes |
| 206-716 | Lumen | SEATTLE | – | – | yes |
| 206-717 | Onvoy | SEATTLE | 2016-03-25 | yes | yes |
| 206-718 | Verizon | SEATTLE | – | – | yes |
| 206-719 | Verizon | SEATTLE | – | – | yes |
| 206-720 | Lumen | SEATTLE | – | – | yes |
| 206-721 | Lumen | SEATTLE | – | – | yes |
| 206-722 | Lumen | SEATTLE | – | – | yes |
| 206-723 | Lumen | SEATTLE | – | – | yes |
| 206-724 | Allstream | SEATTLE | – | yes | yes |
| 206-725 | Lumen | SEATTLE | – | – | yes |
| 206-726 | Lumen | SEATTLE | – | – | yes |
| 206-727 | Lumen | SEATTLE | – | – | yes |
| 206-728 | Lumen | SEATTLE | – | – | yes |
| 206-729 | Lumen | SEATTLE | – | – | yes |
| 206-730 | T-Mobile | SEATTLE | – | yes | yes |
| 206-731 | Lumen | SEATTLE | – | yes | yes |
| 206-732 | Lumen | SEATTLE | – | yes | yes |
| 206-733 | Lumen | SEATTLE | – | yes | yes |
| 206-734 | Lumen | SEATTLE | – | yes | yes |
| 206-735 | Verizon | SEATTLE | 2012-10-12 | yes | yes |
| 206-736 | Onvoy | SEATTLE | – | – | yes |
| 206-737 | Onvoy | SEATTLE | – | yes | yes |
| 206-738 | Onvoy | VASHON | – | yes | yes |
| 206-739 | AT&T | SEATTLE | 2014-10-22 | yes | yes |
| 206-740 | Lumen | SEATTLE | – | yes | yes |
| 206-741 | VoIP Innovations | SEATTLE | 2019-07-30 | yes | yes |
| 206-742 | AT&T | DES MOINES | 2017-09-14 | yes | yes |
| 206-743 | Peerless | SEATTLE | 2010-12-29 | yes | yes |
| 206-744 | Allstream | SEATTLE | 2004-01-30 | yes | yes |
| 206-745 | Onvoy | RICHMNDBCH | – | yes | yes |
| 206-746 | T-Mobile | BAINBDG IS | 2022-01-07 | yes | yes |
| 206-747 | AT&T | SEATTLE | 2011-10-17 | yes | yes |
| 206-748 | Lumen | SEATTLE | – | – | yes |
| 206-749 | Lumen | SEATTLE | – | – | yes |
| 206-750 | Charter | SEATTLE | 2022-07-18 | yes | yes |
| 206-751 | T-Mobile | SEATTLE | 2017-03-13 | yes | yes |
| 206-752 | SKYE TELECOM LLC DBA SKYETEL | SEATTLE | – | yes | yes |
| 206-753 | Lumen | SEATTLE | – | yes | yes |
| 206-754 | Ziply Fiber | SEATTLE | – | – | yes |
| 206-755 | Verizon | SEATTLE | – | – | yes |
| 206-756 | T-Mobile | SEATTLE | 2021-09-27 | yes | yes |
| 206-757 | Lumen | SEATTLE | – | – | yes |
| 206-758 | FRACTEL, LLC | BAINBDG IS | 2021-08-19 | yes | yes |
| 206-759 | AT&T | BAINBDG IS | 2021-10-15 | yes | yes |
| 206-760 | Lumen | SEATTLE | – | – | yes |
| 206-761 | AT&T | RICHMNDBCH | 2021-10-19 | yes | yes |
| 206-762 | Lumen | SEATTLE | – | – | yes |
| 206-763 | Lumen | SEATTLE | – | – | yes |
| 206-764 | Lumen | SEATTLE | – | – | yes |
| 206-765 | Lumen | SEATTLE | – | yes | yes |
| 206-766 | Lumen | SEATTLE | – | yes | yes |
| 206-767 | Lumen | SEATTLE | – | – | yes |
| 206-768 | Lumen | SEATTLE | – | – | yes |
| 206-769 | T-Mobile | SEATTLE | – | yes | yes |
| 206-770 | Lumen | SEATTLE | – | – | yes |
| 206-771 | T-Mobile | SEATTLE | 2016-03-07 | yes | yes |
| 206-772 | Lumen | SEATTLE | – | – | yes |
| 206-773 | Lumen | SEATTLE | 2016-08-18 | yes | yes |
| 206-774 | Lumen | SEATTLE | – | – | yes |
| 206-775 | Onvoy | SEATTLE | 2015-11-25 | yes | yes |
| 206-776 | FIVE9, INC. | SEATTLE | – | yes | yes |
| 206-777 | Verizon | SEATTLE | – | yes | yes |
| 206-778 | T-Mobile | SEATTLE | – | – | yes |
| 206-779 | T-Mobile | SEATTLE | – | – | yes |
| 206-780 | Lumen | BAINBDG IS | – | – | yes |
| 206-781 | Lumen | SEATTLE | – | – | yes |
| 206-782 | Lumen | SEATTLE | – | – | yes |
| 206-783 | Lumen | SEATTLE | – | – | yes |
| 206-784 | Lumen | SEATTLE | – | – | yes |
| 206-785 | Peerless | SEATTLE | 2016-09-08 | yes | yes |
| 206-786 | T-Mobile | SEATTLE | – | yes | yes |
| 206-787 | Lumen | SEATTLE | 2008-11-06 | yes | yes |
| 206-788 | Lumen | SEATTLE | – | yes | yes |
| 206-789 | Lumen | SEATTLE | – | – | yes |
| 206-790 | AT&T | SEATTLE | – | – | yes |
| 206-791 | T-Mobile | SEATTLE | 2021-11-03 | yes | yes |
| 206-792 | XO WASHINGTON, INC. | SEATTLE | – | yes | yes |
| 206-793 | T-Mobile | SEATTLE | – | yes | yes |
| 206-794 | Verizon | SEATTLE | – | – | yes |
| 206-795 | Verizon | SEATTLE | – | – | yes |
| 206-796 | Bandwidth | SEATTLE | 2022-08-19 | yes | yes |
| 206-797 | Lumen | SEATTLE | – | yes | yes |
| 206-798 | EXIANT COMMUNICATIONS LLC | SEATTLE | 2019-08-08 | yes | yes |
| 206-799 | Verizon | SEATTLE | – | – | yes |
| 206-800 | Peerless | RICHMNDBCH | 2014-10-08 | yes | yes |
| 206-801 | Verizon | RICHMNDBCH | – | yes | yes |
| 206-802 | Verizon | SEATTLE | – | yes | yes |
| 206-803 | Onvoy | BAINBDG IS | – | yes | yes |
| 206-804 | Onvoy | BAINBDG IS | 2022-07-11 | yes | yes |
| 206-805 | Allstream | SEATTLE | – | yes | yes |
| 206-806 | HD CARRIER LLC | SEATTLE | 2019-04-16 | yes | yes |
| 206-807 | T-Mobile | SEATTLE | 2025-01-09 | yes | yes |
| 206-808 | Lumen | SEATTLE | – | – | yes |
| 206-809 | Telnyx | SEATTLE | – | yes | yes |
| 206-810 | Spok | SEATTLE | – | – | yes |
| 206-812 | Allstream | SEATTLE | – | – | yes |
| 206-813 | EON TELECOM, INC. | SEATTLE | 2022-11-03 | yes | yes |
| 206-814 | Onvoy | SEATTLE | 2022-06-21 | yes | yes |
| 206-815 | Verizon | SEATTLE | 2023-01-23 | yes | yes |
| 206-816 | Allstream | SEATTLE | – | yes | yes |
| 206-817 | Verizon | SEATTLE | – | – | yes |
| 206-818 | Verizon | SEATTLE | – | – | yes |
| 206-819 | Verizon | SEATTLE | – | – | yes |
| 206-820 | Verizon | SEATTLE | 2023-01-23 | yes | yes |
| 206-821 | Charter | SEATTLE | 2022-10-17 | yes | yes |
| 206-822 | T-Mobile | BAINBDG IS | 2015-03-12 | yes | yes |
| 206-823 | AT&T | BAINBDG IS | 2016-01-15 | yes | yes |
| 206-824 | Lumen | DES MOINES | – | – | yes |
| 206-825 | Onvoy | BAINBDG IS | 2019-01-09 | yes | yes |
| 206-826 | Verizon | SEATTLE | – | – | yes |
| 206-827 | Verizon | SEATTLE | 2023-01-23 | yes | yes |
| 206-828 | Onvoy | RICHMNDBCH | 2022-10-12 | yes | yes |
| 206-829 | Allstream | SEATTLE | – | yes | yes |
| 206-830 | AT&T | SEATTLE | – | yes | yes |
| 206-831 | Verizon | SEATTLE | 2023-01-23 | yes | yes |
| 206-832 | Verizon | SEATTLE | – | yes | yes |
| 206-833 | Verizon | SEATTLE | 2018-11-20 | yes | yes |
| 206-834 | AT&T | SEATTLE | 2001-04-23 | yes | yes |
| 206-835 | Lumen | SEATTLE | – | – | yes |
| 206-836 | Verizon | SEATTLE | 2023-01-23 | yes | yes |
| 206-837 | TON80 COMMUNICATIONS, LLC | SEATTLE | 2022-01-10 | yes | yes |
| 206-838 | Allstream | SEATTLE | – | yes | yes |
| 206-839 | Lumen | SEATTLE | – | yes | yes |
| 206-840 | WAVENATION, LLC | SEATTLE | 2024-10-15 | yes | yes |
| 206-841 | T-Mobile | SEATTLE | – | yes | yes |
| 206-842 | Lumen | BAINBDG IS | – | – | yes |
| 206-843 | T-Mobile | SEATTLE | 2024-11-01 | yes | yes |
| 206-844 | Onvoy | SEATTLE | 2021-06-04 | yes | yes |
| 206-845 | AT&T | SEATTLE | 2024-12-30 | yes | yes |
| 206-846 | AT&T | DES MOINES | 2025-02-10 | yes | yes |
| 206-847 | NUSO, LLC | SEATTLE | 2025-03-24 | yes | yes |
| 206-848 | Onvoy | SEATTLE | 2021-08-10 | yes | yes |
| 206-849 | AT&T | SEATTLE | – | – | yes |
| 206-850 | T-Mobile | SEATTLE | – | yes | yes |
| 206-851 | T-Mobile | SEATTLE | – | yes | yes |
| 206-852 | T-Mobile | SEATTLE | – | yes | yes |
| 206-853 | T-Mobile | SEATTLE | – | yes | yes |
| 206-854 | T-Mobile | SEATTLE | – | yes | yes |
| 206-855 | Lumen | BAINBDG IS | – | yes | yes |
| 206-856 | T-Mobile | SEATTLE | – | yes | yes |
| 206-857 | AT&T | VASHON | 2025-10-17 | yes | yes |
| 206-858 | Allstream | SEATTLE | 2012-11-02 | yes | yes |
| 206-859 | Allstream | SEATTLE | 2001-09-27 | yes | yes |
| 206-860 | Lumen | SEATTLE | – | – | yes |
| 206-861 | Lumen | SEATTLE | – | yes | yes |
| 206-862 | LEAP TELECOM, LLC | SEATTLE | 2025-05-30 | yes | yes |
| 206-863 | AT&T | SEATTLE | 2025-10-23 | yes | yes |
| 206-864 | Bandwidth | DES MOINES | 2025-11-21 | yes | yes |
| 206-865 | Onvoy | SEATTLE | 2022-11-23 | yes | yes |
| 206-866 | Lumen | BAINBDG IS | – | yes | yes |
| 206-867 | COMMIO, LLC | SEATTLE | 2019-03-07 | yes | yes |
| 206-868 | SHELCOMM | SEATTLE | 2026-05-14 | – | yes |
| 206-870 | Lumen | DES MOINES | – | – | yes |
| 206-875 | Onvoy | VASHON | – | yes | yes |
| 206-876 | Lumen | SEATTLE | – | yes | yes |
| 206-877 | Verizon | SEATTLE | – | yes | yes |
| 206-878 | Lumen | DES MOINES | – | – | yes |
| 206-880 | AT&T | SEATTLE | 2017-11-08 | yes | yes |
| 206-881 | WIDE VOICE, LLC - WA | SEATTLE | 2025-02-14 | yes | yes |
| 206-883 | T-Mobile | SEATTLE | – | yes | yes |
| 206-884 | Lumen | SEATTLE | 2007-03-29 | yes | yes |
| 206-886 | AT&T | SEATTLE | 2014-09-26 | yes | yes |
| 206-887 | Peerless | BAINBDG IS | 2017-04-04 | yes | yes |
| 206-888 | Onvoy | SEATTLE | – | yes | yes |
| 206-889 | Verizon | SEATTLE | 2017-06-23 | yes | yes |
| 206-890 | AT&T | SEATTLE | – | – | yes |
| 206-892 | AT&T | SEATTLE | 2001-04-23 | yes | yes |
| 206-895 | Twilio | SEATTLE | – | yes | yes |
| 206-897 | Lumen | SEATTLE | – | – | yes |
| 206-898 | T-Mobile | SEATTLE | – | yes | yes |
| 206-899 | T-Mobile | BAINBDG IS | 2015-11-06 | yes | yes |
| 206-900 | Onvoy | SEATTLE | 2015-06-17 | yes | yes |
| 206-901 | Lumen | SEATTLE | – | – | yes |
| 206-902 | Verizon | SEATTLE | – | yes | yes |
| 206-903 | Lumen | SEATTLE | – | yes | yes |
| 206-905 | Verizon | SEATTLE | – | yes | yes |
| 206-906 | Lumen | SEATTLE | – | yes | yes |
| 206-907 | Spok | SEATTLE | – | – | yes |
| 206-909 | Verizon | SEATTLE | – | – | yes |
| 206-910 | AT&T | SEATTLE | – | – | yes |
| 206-913 | Lumen | SEATTLE | – | yes | yes |
| 206-914 | Verizon | SEATTLE | – | – | yes |
| 206-915 | AT&T | SEATTLE | – | – | yes |
| 206-916 | Spok | SEATTLE | – | – | yes |
| 206-917 | Spok | SEATTLE | – | – | yes |
| 206-919 | Verizon | SEATTLE | – | – | yes |
| 206-920 | Verizon | SEATTLE | – | – | yes |
| 206-922 | Lumen | SEATTLE | – | yes | yes |
| 206-923 | Lumen | SEATTLE | – | yes | yes |
| 206-925 | Lumen | SEATTLE | – | yes | yes |
| 206-926 | Verizon | SEATTLE | – | yes | yes |
| 206-927 | ACCELERATE NETWORKS LLC | BAINBDG IS | 2026-02-20 | yes | yes |
| 206-928 | Charter | SEATTLE | 2017-07-17 | yes | yes |
| 206-929 | Bandwidth | DES MOINES | 2016-03-10 | yes | yes |
| 206-930 | Verizon | SEATTLE | – | – | yes |
| 206-931 | T-Mobile | SEATTLE | – | yes | yes |
| 206-932 | Lumen | SEATTLE | – | – | yes |
| 206-933 | Lumen | SEATTLE | – | – | yes |
| 206-934 | Lumen | SEATTLE | – | yes | yes |
| 206-935 | Lumen | SEATTLE | – | – | yes |
| 206-937 | Lumen | SEATTLE | – | – | yes |
| 206-938 | Lumen | SEATTLE | – | – | yes |
| 206-939 | T-Mobile | SEATTLE | 2013-10-31 | yes | yes |
| 206-940 | Verizon | SEATTLE | – | – | yes |
| 206-941 | T-Mobile | SEATTLE | – | yes | yes |
| 206-944 | FRACTEL, LLC | DES MOINES | 2021-08-19 | yes | yes |
| 206-945 | T-Mobile | SEATTLE | 2017-10-19 | yes | yes |
| 206-946 | Onvoy | SEATTLE | 2013-10-23 | yes | yes |
| 206-947 | Verizon | SEATTLE | – | – | yes |
| 206-948 | Verizon | SEATTLE | – | – | yes |
| 206-949 | Verizon | SEATTLE | – | – | yes |
| 206-953 | AT&T | SEATTLE | – | – | yes |
| 206-954 | AT&T | SEATTLE | – | – | yes |
| 206-955 | Spok | SEATTLE | – | – | yes |
| 206-956 | Lumen | SEATTLE | – | – | yes |
| 206-957 | Allstream | SEATTLE | – | – | yes |
| 206-960 | T-Mobile | SEATTLE | 2015-09-25 | yes | yes |
| 206-962 | Verizon | SEATTLE | – | yes | yes |
| 206-963 | Verizon | SEATTLE | – | – | yes |
| 206-965 | Lumen | SEATTLE | – | yes | yes |
| 206-966 | AT&T | DES MOINES | 2014-12-04 | yes | yes |
| 206-969 | Lumen | SEATTLE | – | – | yes |
| 206-970 | Onvoy | SEATTLE | 2021-01-27 | yes | yes |
| 206-971 | Allstream | SEATTLE | – | yes | yes |
| 206-972 | AT&T | SEATTLE | – | – | yes |
| 206-973 | Allstream | SEATTLE | – | yes | yes |
| 206-977 | Spok | SEATTLE | – | – | yes |
| 206-978 | Spok | SEATTLE | – | – | yes |
| 206-979 | AT&T | SEATTLE | – | – | yes |
| 206-980 | Spok | SEATTLE | – | – | yes |
| 206-981 | T-Mobile | SEATTLE | 2013-08-01 | yes | yes |
| 206-982 | Lumen | SEATTLE | – | – | yes |
| 206-984 | Onvoy | RICHMNDBCH | – | – | yes |
| 206-985 | Lumen | SEATTLE | – | – | yes |
| 206-986 | Spok | SEATTLE | – | – | yes |
| 206-987 | Lumen | SEATTLE | 2001-06-06 | – | yes |
| 206-988 | Lumen | SEATTLE | – | – | yes |
| 206-989 | Spok | SEATTLE | – | – | yes |
| 206-990 | AT&T | SEATTLE | 2020-05-04 | yes | yes |
| 206-991 | Lumen | SEATTLE | – | – | yes |
| 206-992 | AT&T | SEATTLE | – | – | yes |
| 206-993 | Lumen | SEATTLE | – | – | yes |
| 206-994 | Spok | SEATTLE | – | – | yes |
| 206-995 | Lumen | SEATTLE | – | yes | yes |
| 206-996 | Spok | SEATTLE | – | – | yes |
| 206-997 | Lumen | SEATTLE | – | – | yes |
| 206-998 | Lumen | SEATTLE | – | – | yes |
| 206-999 | Verizon | SEATTLE | – | – | yes |
Frequently asked
How many prefixes does area code 206 have?
752 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,520 thousand-number ranges across 5 rate centers.
What do the first three digits after 206 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 206 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 206 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 414 of 206's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
More about this code: overview · carriers · spam complaints · local time