Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 408 prefixes
787 of the 786 possible NXX blocks are assigned in area code 408 (100.1% of capacity), spread across 14 rate centers and 28 holders. The largest holders are PACIFIC BELL (328 blocks, 41.7%), NEW CINGULAR WIRELESS PCS, LLC (70 blocks, 8.9%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (65 blocks, 8.3%). Grouped by brand, AT&T accounts for 424 blocks; brand-attributable holders cover 98% 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 2001-01-24 to 2026-05-21, with 37 blocks handed out in 2001 alone. 442 blocks (56%) 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. 143 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
787 assigned blocks of 786
14 rate centers
28 holders of record
56% in thousands-block pooling
Largest holders in 408
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| PACIFIC BELL | AT&T | 328 | 41.7% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 70 | 8.9% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 65 | 8.3% |
| T-MOBILE USA, INC. | T-Mobile | 42 | 5.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 39 | 5% |
| ONVOY, LLC - CA | Onvoy | 35 | 4.4% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 31 | 3.9% |
| SPOK, INC. | Spok | 27 | 3.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 21 | 2.7% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 20 | 2.5% |
| METROPCS, INC. | T-Mobile | 20 | 2.5% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 17 | 2.2% |
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 787 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 |
|---|---|---|---|---|---|
| 408-200 | TPx | SNJS WEST | – | – | yes |
| 408-201 | AT&T | MORGANHILL | – | yes | yes |
| 408-202 | Verizon | SNJS NORTH | – | – | yes |
| 408-203 | AT&T | SUNNYVALE | – | – | yes |
| 408-204 | Verizon | SNJS NORTH | – | – | yes |
| 408-205 | Verizon | SNJS NORTH | – | – | yes |
| 408-206 | Verizon | SNJS NORTH | – | – | yes |
| 408-207 | TPx | SNJS WEST | – | yes | yes |
| 408-208 | Verizon | MORGANHILL | 2024-12-17 | yes | yes |
| 408-209 | Verizon | SNJS NORTH | – | – | yes |
| 408-210 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-212 | Verizon | SUNNYVALE | – | yes | yes |
| 408-213 | Verizon | SNJS WEST | – | – | yes |
| 408-214 | Bandwidth | SAN MARTIN | 2011-08-04 | yes | yes |
| 408-215 | Verizon | SUNNYVALE | – | yes | yes |
| 408-216 | Verizon | SNJS WEST | 2001-05-11 | yes | yes |
| 408-217 | Lumen | SNJS WEST | 2007-11-28 | yes | yes |
| 408-218 | AT&T | SNJS WEST | – | – | yes |
| 408-219 | AT&T | SNJS WEST | – | – | yes |
| 408-220 | Verizon | SUNNYVALE | – | yes | yes |
| 408-221 | AT&T | SNJS WEST | – | – | yes |
| 408-222 | Verizon | SUNNYVALE | – | – | yes |
| 408-223 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-224 | AT&T | SNJS SOUTH | – | – | yes |
| 408-225 | AT&T | SNJS SOUTH | – | – | yes |
| 408-226 | AT&T | SNJS SOUTH | – | – | yes |
| 408-227 | AT&T | SNJS SOUTH | – | – | yes |
| 408-228 | Verizon | SNJS NORTH | – | yes | yes |
| 408-229 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-230 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-231 | Spok | SNJS WEST | – | – | yes |
| 408-232 | AT&T | SNJS NORTH | – | – | yes |
| 408-233 | Spok | SNJS WEST | – | – | yes |
| 408-234 | Verizon | SNJS WEST | – | – | yes |
| 408-235 | AT&T | SNJS WEST | – | – | yes |
| 408-236 | AT&T | SNJS WEST | – | – | yes |
| 408-237 | Spok | SNJS WEST | – | – | yes |
| 408-238 | AT&T | SNJS SOUTH | – | – | yes |
| 408-239 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-240 | TPx | SNJS NORTH | – | – | yes |
| 408-241 | AT&T | SNJS WEST | – | – | yes |
| 408-242 | AT&T | SUNNYVALE | – | – | yes |
| 408-243 | AT&T | SNJS WEST | – | – | yes |
| 408-244 | AT&T | SNJS WEST | – | – | yes |
| 408-245 | AT&T | SUNNYVALE | – | – | yes |
| 408-246 | AT&T | SNJS WEST | – | – | yes |
| 408-247 | AT&T | SNJS WEST | – | – | yes |
| 408-248 | AT&T | SNJS WEST | – | – | yes |
| 408-249 | AT&T | SNJS WEST | – | – | yes |
| 408-250 | AT&T | SNJS WEST | 2001-06-25 | – | yes |
| 408-251 | AT&T | SNJS NORTH | – | – | yes |
| 408-252 | AT&T | SNJS WEST | – | – | yes |
| 408-253 | AT&T | SNJS WEST | – | – | yes |
| 408-254 | AT&T | SNJS NORTH | – | – | yes |
| 408-255 | AT&T | SNJS WEST | – | – | yes |
| 408-256 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-257 | AT&T | SNJS WEST | – | – | yes |
| 408-258 | AT&T | SNJS NORTH | – | – | yes |
| 408-259 | AT&T | SNJS NORTH | – | – | yes |
| 408-260 | AT&T | SNJS WEST | – | yes | yes |
| 408-261 | AT&T | SNJS WEST | – | – | yes |
| 408-262 | AT&T | SNJS NORTH | – | – | yes |
| 408-263 | AT&T | SNJS NORTH | – | – | yes |
| 408-264 | AT&T | SNJS SOUTH | – | – | yes |
| 408-265 | AT&T | SNJS SOUTH | – | – | yes |
| 408-266 | AT&T | SNJS SOUTH | – | – | yes |
| 408-267 | AT&T | SNJS SOUTH | – | – | yes |
| 408-268 | AT&T | SNJS SOUTH | – | – | yes |
| 408-269 | AT&T | SNJS SOUTH | – | – | yes |
| 408-270 | AT&T | SNJS SOUTH | – | – | yes |
| 408-271 | AT&T | SNJS WEST | – | – | yes |
| 408-272 | AT&T | SNJS NORTH | – | – | yes |
| 408-273 | Verizon | SNJS NORTH | – | yes | yes |
| 408-274 | AT&T | SNJS SOUTH | – | – | yes |
| 408-275 | AT&T | SNJS WEST | – | yes | yes |
| 408-276 | AT&T | SNJS WEST | – | – | yes |
| 408-277 | AT&T | SNJS WEST | – | – | yes |
| 408-278 | AT&T | SNJS WEST | – | – | yes |
| 408-279 | AT&T | SNJS WEST | – | yes | yes |
| 408-280 | AT&T | SNJS WEST | – | – | yes |
| 408-281 | AT&T | SNJS SOUTH | – | – | yes |
| 408-282 | AT&T | SNJS WEST | – | – | yes |
| 408-283 | AT&T | SNJS WEST | – | – | yes |
| 408-284 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-285 | AT&T | SNJS WEST | – | – | yes |
| 408-286 | AT&T | SNJS WEST | – | – | yes |
| 408-287 | AT&T | SNJS WEST | – | – | yes |
| 408-288 | AT&T | SNJS WEST | – | – | yes |
| 408-289 | AT&T | SNJS WEST | – | yes | yes |
| 408-290 | Bandwidth | SUNNYVALE | 2011-07-22 | yes | yes |
| 408-291 | AT&T | SNJS WEST | – | – | yes |
| 408-292 | AT&T | SNJS WEST | – | – | yes |
| 408-293 | AT&T | SNJS WEST | – | – | yes |
| 408-294 | AT&T | SNJS WEST | – | – | yes |
| 408-295 | AT&T | SNJS WEST | – | – | yes |
| 408-296 | AT&T | SNJS WEST | – | yes | yes |
| 408-297 | AT&T | SNJS WEST | – | – | yes |
| 408-298 | AT&T | SNJS WEST | – | – | yes |
| 408-299 | AT&T | SNJS WEST | – | – | yes |
| 408-300 | Comcast | SNJS SOUTH | 2008-08-11 | yes | yes |
| 408-301 | Spok | SNJS WEST | – | – | yes |
| 408-302 | Onvoy | SNJS WEST | 2023-09-19 | yes | yes |
| 408-303 | T-Mobile | SARATOGA | 2023-07-13 | yes | yes |
| 408-304 | T-Mobile | SARATOGA | 2024-02-29 | yes | yes |
| 408-305 | Spok | SNJS WEST | – | – | yes |
| 408-306 | AT&T | SUNNYVALE | 2001-06-25 | yes | yes |
| 408-307 | AT&T | SNJS WEST | – | – | yes |
| 408-308 | Spok | SNJS WEST | – | – | yes |
| 408-309 | Verizon | SNJS WEST | – | – | yes |
| 408-310 | T-Mobile | MORGANHILL | 2001-12-26 | yes | yes |
| 408-312 | Dish | SAN MARTIN | 2023-05-09 | yes | yes |
| 408-313 | Verizon | SNJS WEST | – | – | yes |
| 408-314 | Verizon | SNJS WEST | – | – | yes |
| 408-315 | Verizon | SNJS WEST | – | – | yes |
| 408-316 | Verizon | SNJS WEST | – | – | yes |
| 408-317 | Onvoy | LOS GATOS | – | yes | yes |
| 408-318 | Verizon | SNJS WEST | – | yes | yes |
| 408-319 | Verizon | SALINAS | – | yes | yes |
| 408-320 | AT&T | SNJS WEST | 2010-03-24 | yes | yes |
| 408-321 | AT&T | SNJS NORTH | – | – | yes |
| 408-322 | Spok | SNJS WEST | – | – | yes |
| 408-323 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-324 | AT&T | SNJS NORTH | – | yes | yes |
| 408-325 | AT&T | SNJS NORTH | – | – | yes |
| 408-326 | AT&T | SNJS WEST | – | yes | yes |
| 408-327 | AT&T | SNJS WEST | – | – | yes |
| 408-328 | AT&T | SUNNYVALE | – | – | yes |
| 408-329 | Lumen | SUNNYVALE | 2002-09-16 | yes | yes |
| 408-330 | AT&T | SNJS WEST | – | – | yes |
| 408-331 | Verizon | SUNNYVALE | – | – | yes |
| 408-332 | AT&T | SNJS WEST | – | yes | yes |
| 408-333 | Lumen | SNJS SOUTH | – | yes | yes |
| 408-334 | AT&T | SNJS WEST | – | yes | yes |
| 408-335 | Frontier | LOS GATOS | – | yes | yes |
| 408-336 | AT&T | SUNNYVALE | 2006-04-19 | yes | yes |
| 408-337 | Charter | GILROY | 2009-06-18 | yes | yes |
| 408-338 | AT&T | SUNNYVALE | 2006-04-07 | yes | yes |
| 408-339 | AT&T | SNJS WEST | – | – | yes |
| 408-340 | Verizon | CAMPBELL | – | yes | yes |
| 408-341 | AT&T | CAMPBELL | – | yes | yes |
| 408-342 | AT&T | SNJS WEST | – | yes | yes |
| 408-343 | AT&T | SNJS WEST | – | yes | yes |
| 408-344 | 33 WIRELESS INC. | SNJS WEST | – | – | yes |
| 408-345 | AT&T | SNJS WEST | – | yes | yes |
| 408-346 | Verizon | SNJS WEST | – | – | yes |
| 408-347 | AT&T | SNJS NORTH | – | – | yes |
| 408-348 | AT&T | LOS GATOS | – | – | yes |
| 408-349 | Verizon | SUNNYVALE | – | – | yes |
| 408-350 | Verizon | SNJS WEST | – | – | yes |
| 408-351 | Onvoy | SNJS WEST | – | – | yes |
| 408-352 | AT&T | SNJS WEST | – | yes | yes |
| 408-353 | Frontier | LOS GATOS | – | yes | yes |
| 408-354 | Frontier | LOS GATOS | – | – | yes |
| 408-355 | AT&T | LOS GATOS | – | yes | yes |
| 408-356 | Frontier | LOS GATOS | – | – | yes |
| 408-357 | Frontier | LOS GATOS | – | yes | yes |
| 408-358 | Frontier | LOS GATOS | – | – | yes |
| 408-359 | Verizon | SARATOGA | – | yes | yes |
| 408-360 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-361 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-362 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-363 | AT&T | SNJS SOUTH | – | – | yes |
| 408-364 | AT&T | CAMPBELL | – | yes | yes |
| 408-365 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-366 | AT&T | SNJS WEST | – | yes | yes |
| 408-367 | Verizon | SNJS WEST | – | yes | yes |
| 408-368 | AT&T | SUNNYVALE | 2002-02-22 | yes | yes |
| 408-369 | AT&T | CAMPBELL | – | – | yes |
| 408-370 | AT&T | CAMPBELL | – | yes | yes |
| 408-371 | AT&T | CAMPBELL | – | – | yes |
| 408-372 | Onvoy | SNJS NORTH | 2008-10-13 | yes | yes |
| 408-373 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-374 | AT&T | CAMPBELL | – | – | yes |
| 408-375 | T-Mobile | CAMPBELL | – | yes | yes |
| 408-376 | AT&T | CAMPBELL | – | yes | yes |
| 408-377 | AT&T | CAMPBELL | – | – | yes |
| 408-378 | AT&T | CAMPBELL | – | – | yes |
| 408-379 | AT&T | CAMPBELL | – | – | yes |
| 408-380 | TPx | SNJS WEST | – | yes | yes |
| 408-381 | Onvoy | SNJS WEST | 2021-09-16 | yes | yes |
| 408-382 | AT&T | SNJS NORTH | – | yes | yes |
| 408-383 | AT&T | SNJS NORTH | – | – | yes |
| 408-384 | TPx | LOS GATOS | – | yes | yes |
| 408-385 | TPx | CAMPBELL | – | yes | yes |
| 408-386 | AT&T | SNJS WEST | 2001-08-22 | – | yes |
| 408-387 | AT&T | SNJS WEST | – | yes | yes |
| 408-388 | Spok | SNJS WEST | – | – | yes |
| 408-389 | Lumen | SNJS SOUTH | 2011-05-06 | yes | yes |
| 408-390 | T-Mobile | SNJS WEST | 2001-04-25 | yes | yes |
| 408-391 | AT&T | SNJS WEST | – | – | yes |
| 408-392 | AT&T | SNJS WEST | – | – | yes |
| 408-393 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-394 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-395 | Frontier | LOS GATOS | – | – | yes |
| 408-396 | T-Mobile | SNJS WEST | 2001-04-25 | yes | yes |
| 408-397 | Spok | SNJS WEST | – | – | yes |
| 408-398 | AT&T | SNJS WEST | – | – | yes |
| 408-399 | Frontier | LOS GATOS | – | – | yes |
| 408-400 | AT&T | SUNNYVALE | – | yes | yes |
| 408-401 | T-Mobile | SNJS WEST | 2001-10-18 | yes | yes |
| 408-402 | Frontier | LOS GATOS | – | yes | yes |
| 408-403 | Onvoy | SNJS SOUTH | 2023-09-19 | yes | yes |
| 408-404 | Lumen | SNJS NORTH | – | yes | yes |
| 408-405 | Verizon | SALINAS | – | yes | yes |
| 408-406 | AT&T | SNJS WEST | – | – | yes |
| 408-407 | Spok | SNJS WEST | – | – | yes |
| 408-408 | AT&T | SNJS WEST | 2025-04-07 | yes | yes |
| 408-409 | T-Mobile | CAMPBELL | 2008-11-07 | yes | yes |
| 408-410 | AT&T | CAMPBELL | 2001-03-22 | – | yes |
| 408-412 | Bandwidth | CAMPBELL | 2010-09-30 | yes | yes |
| 408-413 | Onvoy | GILROY | – | yes | yes |
| 408-414 | Verizon | SNJS SOUTH | – | yes | yes |
| 408-415 | Verizon | MORGANHILL | 2023-08-24 | yes | yes |
| 408-416 | Verizon | SNJS NORTH | – | yes | yes |
| 408-417 | AT&T | SNJS WEST | 2002-02-22 | yes | yes |
| 408-418 | Peerless | SNJS WEST | 2008-12-18 | yes | yes |
| 408-419 | AT&T | SUNNYVALE | 2006-11-27 | yes | yes |
| 408-420 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-421 | AT&T | SNJS NORTH | 2001-09-19 | – | yes |
| 408-422 | T-Mobile | SAN MARTIN | – | yes | yes |
| 408-423 | AT&T | SNJS WEST | – | – | yes |
| 408-424 | Verizon | SNJS NORTH | – | – | yes |
| 408-425 | AT&T | SNJS SOUTH | – | – | yes |
| 408-426 | T-Mobile | CAMPBELL | 2001-05-17 | yes | yes |
| 408-427 | AT&T | GILROY | – | yes | yes |
| 408-428 | AT&T | SNJS NORTH | – | yes | yes |
| 408-429 | T-Mobile | CAMPBELL | 2002-09-19 | yes | yes |
| 408-430 | Bandwidth | GILROY | 2010-09-30 | yes | yes |
| 408-431 | AT&T | SUNNYVALE | – | – | yes |
| 408-432 | AT&T | SNJS NORTH | – | – | yes |
| 408-433 | AT&T | SNJS NORTH | – | – | yes |
| 408-434 | AT&T | SNJS NORTH | – | – | yes |
| 408-435 | AT&T | SNJS NORTH | – | – | yes |
| 408-436 | AT&T | SNJS WEST | – | – | yes |
| 408-437 | AT&T | SNJS WEST | – | – | yes |
| 408-438 | Verizon | LOS GATOS | 2001-04-19 | yes | yes |
| 408-439 | AT&T | SNJS WEST | – | – | yes |
| 408-440 | Comcast | SNJS SOUTH | 2006-12-11 | yes | yes |
| 408-441 | AT&T | SNJS WEST | – | – | yes |
| 408-442 | Peerless | LOS GATOS | 2013-03-08 | yes | yes |
| 408-443 | Onvoy | GILROY | 2023-09-19 | yes | yes |
| 408-444 | Onvoy | SNJS NORTH | – | yes | yes |
| 408-445 | AT&T | SNJS SOUTH | – | – | yes |
| 408-446 | AT&T | SNJS WEST | – | – | yes |
| 408-447 | AT&T | SNJS WEST | – | – | yes |
| 408-448 | AT&T | SNJS SOUTH | – | – | yes |
| 408-449 | T-Mobile | SNJS NORTH | – | yes | yes |
| 408-450 | AT&T | SNJS WEST | – | – | yes |
| 408-451 | AT&T | SNJS WEST | – | – | yes |
| 408-452 | AT&T | SNJS WEST | – | – | yes |
| 408-453 | AT&T | SNJS WEST | – | – | yes |
| 408-454 | TPx | SNJS WEST | – | yes | yes |
| 408-455 | T-Mobile | LOS GATOS | 2002-01-29 | yes | yes |
| 408-456 | AT&T | SNJS NORTH | – | – | yes |
| 408-457 | Lumen | SNJS NORTH | 2006-12-12 | yes | yes |
| 408-458 | AT&T | LOS GATOS | 2002-01-29 | yes | yes |
| 408-459 | Onvoy | SNJS WEST | 2009-09-03 | yes | yes |
| 408-460 | T-Mobile | CAMPBELL | 2002-01-29 | yes | yes |
| 408-461 | T-Mobile | SAN MARTIN | 2001-05-17 | yes | yes |
| 408-462 | Lumen | SUNNYVALE | 2009-09-11 | yes | yes |
| 408-463 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-464 | AT&T | SNJS NORTH | – | – | yes |
| 408-465 | Lumen | MORGANHILL | – | yes | yes |
| 408-466 | T-Mobile | CAMPBELL | 2006-12-19 | yes | yes |
| 408-467 | AT&T | SNJS WEST | – | – | yes |
| 408-468 | AT&T | SNJS NORTH | – | yes | yes |
| 408-469 | Lumen | SUNNYVALE | – | yes | yes |
| 408-470 | AT&T | SUNNYVALE | – | yes | yes |
| 408-471 | Bandwidth | SNJS NORTH | 2010-10-01 | yes | yes |
| 408-472 | Verizon | SNJS WEST | – | – | yes |
| 408-473 | AT&T | SNJS NORTH | – | – | yes |
| 408-474 | AT&T | SNJS NORTH | – | yes | yes |
| 408-475 | Bandwidth | SUNNYVALE | 2011-05-10 | yes | yes |
| 408-476 | AT&T | SNJS SOUTH | 2001-12-26 | yes | yes |
| 408-477 | AT&T | SNJS WEST | 2011-07-29 | yes | yes |
| 408-478 | Verizon | SNJS SOUTH | 2011-05-26 | yes | yes |
| 408-479 | Verizon | SNJS NORTH | 2011-05-26 | yes | yes |
| 408-480 | T-Mobile | SUNNYVALE | 2001-12-28 | yes | yes |
| 408-481 | AT&T | SUNNYVALE | – | – | yes |
| 408-482 | Verizon | SNJS WEST | – | – | yes |
| 408-483 | Verizon | SNJS WEST | – | – | yes |
| 408-484 | Verizon | SARATOGA | – | yes | yes |
| 408-485 | Spok | SNJS WEST | – | – | yes |
| 408-486 | AT&T | SNJS WEST | – | – | yes |
| 408-487 | AT&T | SNJS WEST | – | – | yes |
| 408-488 | Spok | SNJS WEST | – | – | yes |
| 408-489 | Verizon | SNJS WEST | – | – | yes |
| 408-490 | Verizon | SNJS WEST | – | yes | yes |
| 408-491 | AT&T | SNJS WEST | – | – | yes |
| 408-492 | AT&T | SNJS WEST | – | – | yes |
| 408-493 | AT&T | SNJS NORTH | – | yes | yes |
| 408-494 | AT&T | SNJS WEST | – | – | yes |
| 408-495 | AT&T | SNJS WEST | – | yes | yes |
| 408-496 | AT&T | SNJS WEST | – | – | yes |
| 408-497 | Verizon | SNJS WEST | – | – | yes |
| 408-498 | Comcast | SUNNYVALE | 2011-07-29 | yes | yes |
| 408-499 | Verizon | SNJS WEST | – | – | yes |
| 408-500 | Verizon | MORGANHILL | – | yes | yes |
| 408-501 | AT&T | SNJS WEST | – | yes | yes |
| 408-502 | Verizon | LOS GATOS | 2011-08-24 | yes | yes |
| 408-503 | AT&T | SNJS NORTH | – | yes | yes |
| 408-504 | AT&T | SNJS WEST | – | – | yes |
| 408-505 | AT&T | SUNNYVALE | – | – | yes |
| 408-506 | AT&T | SNJS WEST | – | – | yes |
| 408-507 | AT&T | SUNNYVALE | – | – | yes |
| 408-508 | AT&T | CAMPBELL | 2012-02-16 | yes | yes |
| 408-509 | T-Mobile | SNJS NORTH | 2001-09-21 | – | yes |
| 408-510 | Verizon | SNJS WEST | 2007-01-19 | yes | yes |
| 408-512 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-513 | TPx | SNJS SOUTH | – | yes | yes |
| 408-514 | TPx | SNJS NORTH | – | yes | yes |
| 408-515 | Verizon | SNJS NORTH | 2001-04-19 | – | yes |
| 408-516 | Onvoy | SNJS WEST | – | yes | yes |
| 408-517 | AT&T | SNJS WEST | – | yes | yes |
| 408-518 | AT&T | SNJS NORTH | – | yes | yes |
| 408-519 | Verizon | SNJS NORTH | – | – | yes |
| 408-520 | Onvoy | SNJS NORTH | 2009-11-25 | yes | yes |
| 408-521 | Onvoy | SNJS WEST | – | yes | yes |
| 408-522 | AT&T | SUNNYVALE | – | yes | yes |
| 408-523 | AT&T | SUNNYVALE | – | – | yes |
| 408-524 | AT&T | SUNNYVALE | – | – | yes |
| 408-525 | AT&T | SNJS NORTH | – | – | yes |
| 408-526 | AT&T | SNJS NORTH | – | – | yes |
| 408-527 | AT&T | SNJS NORTH | – | – | yes |
| 408-528 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-529 | Verizon | SNJS WEST | – | – | yes |
| 408-530 | AT&T | SUNNYVALE | – | – | yes |
| 408-531 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-532 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-533 | Verizon | SNJS WEST | – | yes | yes |
| 408-534 | AT&T | SNJS WEST | – | yes | yes |
| 408-535 | AT&T | SNJS WEST | – | – | yes |
| 408-536 | AT&T | SNJS WEST | – | – | yes |
| 408-537 | AT&T | SNJS WEST | – | yes | yes |
| 408-538 | Onvoy | SNJS WEST | – | – | yes |
| 408-539 | Onvoy | SNJS WEST | – | – | yes |
| 408-540 | Verizon | CAMPBELL | – | yes | yes |
| 408-541 | AT&T | SUNNYVALE | – | yes | yes |
| 408-542 | AT&T | SUNNYVALE | – | yes | yes |
| 408-543 | AT&T | SUNNYVALE | – | yes | yes |
| 408-544 | AT&T | SNJS NORTH | – | yes | yes |
| 408-545 | AT&T | SNJS NORTH | – | yes | yes |
| 408-546 | AT&T | SNJS NORTH | – | – | yes |
| 408-547 | Onvoy | SNJS WEST | – | yes | yes |
| 408-548 | AT&T | SUNNYVALE | – | yes | yes |
| 408-549 | Onvoy | SNJS WEST | – | yes | yes |
| 408-550 | Lumen | SNJS WEST | – | yes | yes |
| 408-551 | AT&T | SNJS WEST | – | yes | yes |
| 408-552 | Spok | SNJS WEST | – | – | yes |
| 408-553 | AT&T | SNJS WEST | – | – | yes |
| 408-554 | AT&T | SNJS WEST | – | – | yes |
| 408-556 | AT&T | SNJS WEST | – | yes | yes |
| 408-557 | AT&T | SNJS WEST | – | yes | yes |
| 408-558 | AT&T | CAMPBELL | – | – | yes |
| 408-559 | AT&T | CAMPBELL | – | – | yes |
| 408-560 | Bandwidth | LOS GATOS | 2012-02-16 | yes | yes |
| 408-561 | T-Mobile | SNJS WEST | 2001-08-22 | – | yes |
| 408-562 | AT&T | SNJS WEST | – | – | yes |
| 408-563 | AT&T | SNJS WEST | – | – | yes |
| 408-564 | Comcast | SNJS WEST | – | yes | yes |
| 408-565 | AT&T | SNJS WEST | – | yes | yes |
| 408-566 | AT&T | SNJS WEST | – | – | yes |
| 408-567 | AT&T | SNJS WEST | – | yes | yes |
| 408-568 | Verizon | SNJS WEST | – | – | yes |
| 408-569 | T-Mobile | SNJS WEST | 2001-04-25 | yes | yes |
| 408-570 | AT&T | SNJS NORTH | – | – | yes |
| 408-571 | AT&T | SNJS NORTH | – | yes | yes |
| 408-572 | Verizon | SNJS WEST | – | – | yes |
| 408-573 | AT&T | SNJS WEST | – | – | yes |
| 408-574 | AT&T | SNJS SOUTH | – | – | yes |
| 408-575 | AT&T | SNJS WEST | – | – | yes |
| 408-576 | AT&T | SNJS NORTH | – | – | yes |
| 408-577 | AT&T | SNJS NORTH | – | yes | yes |
| 408-578 | AT&T | SNJS SOUTH | – | – | yes |
| 408-579 | TPx | SNJS WEST | – | yes | yes |
| 408-580 | T-Mobile | SNJS SOUTH | – | yes | yes |
| 408-581 | AT&T | SNJS WEST | 2022-08-22 | yes | yes |
| 408-582 | Verizon | SNJS NORTH | – | yes | yes |
| 408-583 | Verizon | CAMPBELL | – | yes | yes |
| 408-584 | AT&T | SUNNYVALE | – | – | yes |
| 408-585 | TPx | SUNNYVALE | – | yes | yes |
| 408-586 | AT&T | SNJS NORTH | – | – | yes |
| 408-587 | 33 WIRELESS INC. | SALINAS | – | – | yes |
| 408-588 | AT&T | SNJS WEST | – | yes | yes |
| 408-589 | UTILITY TELECOM GROUP, LLC - CA | SNJS WEST | – | – | yes |
| 408-590 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-591 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-592 | T-Mobile | SNJS NORTH | – | yes | yes |
| 408-593 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-594 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-595 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-596 | AT&T | LOS GATOS | 2001-11-28 | yes | yes |
| 408-597 | Verizon | SNJS NORTH | – | yes | yes |
| 408-598 | Verizon | SUNNYVALE | 2007-04-19 | yes | yes |
| 408-599 | Verizon | SNJS SOUTH | 2009-09-11 | yes | yes |
| 408-600 | T-Mobile | SNJS SOUTH | 2007-08-16 | yes | yes |
| 408-601 | Bandwidth | SNJS NORTH | 2012-01-18 | yes | yes |
| 408-602 | Verizon | SALINAS | – | yes | yes |
| 408-603 | Lumen | CAMPBELL | – | yes | yes |
| 408-604 | Verizon | SUNNYVALE | 2012-01-18 | yes | yes |
| 408-605 | Verizon | SNJS WEST | – | – | yes |
| 408-606 | Verizon | SNJS WEST | 2012-04-17 | yes | yes |
| 408-607 | AT&T | MORGANHILL | – | – | yes |
| 408-608 | Onvoy | CAMPBELL | – | yes | yes |
| 408-609 | Verizon | SNJS NORTH | 2012-04-17 | yes | yes |
| 408-610 | Verizon | SNJS WEST | – | yes | yes |
| 408-612 | TPx | MORGANHILL | – | yes | yes |
| 408-613 | Verizon | SNJS SOUTH | 2007-09-15 | yes | yes |
| 408-614 | Verizon | CAMPBELL | 2012-05-17 | yes | yes |
| 408-615 | AT&T | SNJS WEST | – | – | yes |
| 408-616 | AT&T | SUNNYVALE | – | yes | yes |
| 408-617 | AT&T | SUNNYVALE | – | yes | yes |
| 408-618 | Onvoy | SNJS NORTH | – | yes | yes |
| 408-619 | Spok | SNJS WEST | – | – | yes |
| 408-620 | Verizon | SNJS SOUTH | 2011-09-13 | yes | yes |
| 408-621 | AT&T | SARATOGA | – | – | yes |
| 408-622 | Bandwidth | SNJS SOUTH | – | yes | yes |
| 408-623 | AT&T | SNJS SOUTH | – | – | yes |
| 408-624 | Lumen | SNJS SOUTH | – | yes | yes |
| 408-625 | Lumen | SNJS WEST | 2001-01-24 | yes | yes |
| 408-626 | AT&T | CAMPBELL | – | – | yes |
| 408-627 | T-Mobile | SNJS NORTH | 2004-10-29 | yes | yes |
| 408-628 | Lumen | CAMPBELL | – | yes | yes |
| 408-629 | AT&T | SNJS SOUTH | – | – | yes |
| 408-630 | AT&T | SNJS SOUTH | 2011-10-21 | yes | yes |
| 408-631 | Spok | SNJS WEST | – | – | yes |
| 408-632 | NORTH COUNTY COMMUNICATION CORPORATION - CA | GILROY | – | – | yes |
| 408-633 | NORTH COUNTY COMMUNICATION CORPORATION - CA | SNJS SOUTH | – | – | yes |
| 408-634 | Lumen | SAN MARTIN | – | yes | yes |
| 408-635 | AT&T | SNJS NORTH | – | yes | yes |
| 408-636 | Verizon | SUNNYVALE | – | yes | yes |
| 408-637 | TPx | CAMPBELL | 2010-02-22 | yes | yes |
| 408-638 | T-Mobile | SNJS WEST | 2011-11-17 | yes | yes |
| 408-639 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-640 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-641 | TPx | SNJS WEST | 2010-02-22 | yes | yes |
| 408-642 | Verizon | SNJS WEST | 2007-09-19 | yes | yes |
| 408-643 | T-Mobile | SNJS NORTH | 2011-10-21 | yes | yes |
| 408-644 | T-Mobile | SNJS SOUTH | 2001-11-28 | – | yes |
| 408-645 | Bandwidth | SNJS WEST | 2010-10-21 | yes | yes |
| 408-646 | T-Mobile | SNJS WEST | 2001-11-28 | – | yes |
| 408-647 | AT&T | SARATOGA | – | yes | yes |
| 408-648 | IP HORIZON LLC | SNJS WEST | – | yes | yes |
| 408-649 | Verizon | SNJS NORTH | 2006-04-21 | yes | yes |
| 408-650 | Onvoy | SNJS WEST | – | yes | yes |
| 408-651 | 33 WIRELESS INC. | SALINAS | – | – | yes |
| 408-652 | AT&T | SNJS WEST | – | yes | yes |
| 408-653 | AT&T | SNJS WEST | – | – | yes |
| 408-654 | AT&T | SNJS WEST | – | – | yes |
| 408-655 | Verizon | SNJS NORTH | – | – | yes |
| 408-656 | AT&T | LOS GATOS | – | – | yes |
| 408-657 | Bandwidth | SAN MARTIN | – | yes | yes |
| 408-658 | Bandwidth | SNJS WEST | 2010-10-25 | yes | yes |
| 408-659 | T-Mobile | MORGANHILL | 2010-03-30 | yes | yes |
| 408-660 | Lumen | SNJS WEST | – | yes | yes |
| 408-661 | T-Mobile | SNJS SOUTH | 2001-09-21 | – | yes |
| 408-662 | Lumen | SNJS NORTH | 2011-05-26 | yes | yes |
| 408-663 | Verizon | SUNNYVALE | 2010-11-16 | yes | yes |
| 408-664 | AT&T | SUNNYVALE | 2012-03-16 | yes | yes |
| 408-665 | T-Mobile | GILROY | 2007-10-10 | yes | yes |
| 408-666 | AT&T | SNJS WEST | – | – | yes |
| 408-667 | T-Mobile | SNJS NORTH | 2001-10-18 | – | yes |
| 408-668 | Onvoy | SNJS WEST | – | yes | yes |
| 408-669 | Bandwidth | SNJS SOUTH | 2014-11-10 | yes | yes |
| 408-670 | Verizon | SALINAS | – | yes | yes |
| 408-671 | Verizon | SALINAS | – | yes | yes |
| 408-672 | Verizon | SALINAS | – | yes | yes |
| 408-673 | Verizon | SNJS WEST | 2010-03-31 | yes | yes |
| 408-674 | AT&T | SNJS WEST | – | – | yes |
| 408-675 | Lumen | SUNNYVALE | 2010-06-04 | yes | yes |
| 408-676 | Onvoy | SAN MARTIN | – | yes | yes |
| 408-677 | T-Mobile | SNJS SOUTH | 2006-02-22 | yes | yes |
| 408-678 | AT&T | SNJS NORTH | – | yes | yes |
| 408-679 | AT&T | CAMPBELL | 2002-04-15 | yes | yes |
| 408-680 | T-Mobile | CAMPBELL | 2011-01-26 | yes | yes |
| 408-681 | AT&T | SAN MARTIN | – | yes | yes |
| 408-682 | AT&T | SAN MARTIN | – | yes | yes |
| 408-683 | AT&T | SAN MARTIN | – | yes | yes |
| 408-684 | Lumen | SNJS NORTH | 2010-06-04 | yes | yes |
| 408-685 | T-Mobile | SUNNYVALE | 2001-02-28 | yes | yes |
| 408-686 | AT&T | SAN MARTIN | – | yes | yes |
| 408-687 | T-Mobile | SNJS NORTH | – | yes | yes |
| 408-688 | Lumen | CAMPBELL | – | yes | yes |
| 408-689 | Lumen | SNJS WEST | – | yes | yes |
| 408-690 | T-Mobile | SNJS WEST | – | yes | yes |
| 408-691 | Verizon | SNJS WEST | – | – | yes |
| 408-692 | Onvoy | SAN MARTIN | – | yes | yes |
| 408-693 | Verizon | SNJS SOUTH | 2006-08-13 | yes | yes |
| 408-694 | Verizon | SNJS SOUTH | – | yes | yes |
| 408-695 | AT&T | SAN MARTIN | – | yes | yes |
| 408-696 | UTILITY TELECOM GROUP, LLC - CA | SNJS WEST | – | – | yes |
| 408-697 | UTILITY TELECOM GROUP, LLC - CA | SNJS WEST | – | – | yes |
| 408-698 | Verizon | LOS GATOS | 2023-09-11 | yes | yes |
| 408-699 | UTILITY TELECOM GROUP, LLC - CA | SNJS WEST | – | – | yes |
| 408-701 | Lumen | SUNNYVALE | – | yes | yes |
| 408-702 | Lumen | SUNNYVALE | – | yes | yes |
| 408-703 | Bandwidth | SNJS WEST | 2011-04-12 | yes | yes |
| 408-704 | AT&T | SNJS WEST | 2001-03-08 | yes | yes |
| 408-705 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-706 | Verizon | MORGANHILL | 2008-01-14 | yes | yes |
| 408-707 | Onvoy | SNJS NORTH | 2011-08-26 | yes | yes |
| 408-708 | Bandwidth | SNJS NORTH | 2011-04-15 | yes | yes |
| 408-709 | Peerless | SNJS WEST | 2013-01-09 | yes | yes |
| 408-710 | Verizon | MORGANHILL | 2001-03-22 | – | yes |
| 408-712 | Verizon | SNJS NORTH | – | – | yes |
| 408-713 | Bandwidth | GILROY | 2011-04-15 | yes | yes |
| 408-714 | AT&T | SNJS NORTH | 2012-12-24 | yes | yes |
| 408-715 | Onvoy | SNJS NORTH | – | yes | yes |
| 408-716 | Onvoy | SUNNYVALE | – | yes | yes |
| 408-717 | Lumen | SNJS SOUTH | – | yes | yes |
| 408-718 | AT&T | SUNNYVALE | – | – | yes |
| 408-719 | AT&T | SNJS NORTH | – | yes | yes |
| 408-720 | AT&T | SUNNYVALE | – | – | yes |
| 408-721 | AT&T | SUNNYVALE | – | yes | yes |
| 408-722 | AT&T | MORGANHILL | 2006-06-30 | yes | yes |
| 408-723 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-724 | Verizon | SNJS SOUTH | 2010-06-09 | yes | yes |
| 408-725 | AT&T | SNJS WEST | – | – | yes |
| 408-726 | T-Mobile | SNJS NORTH | 2005-02-02 | yes | yes |
| 408-727 | AT&T | SNJS WEST | – | – | yes |
| 408-728 | Verizon | SNJS SOUTH | 2005-08-03 | yes | yes |
| 408-729 | AT&T | SNJS NORTH | – | – | yes |
| 408-730 | AT&T | SUNNYVALE | – | – | yes |
| 408-731 | AT&T | SUNNYVALE | – | yes | yes |
| 408-732 | AT&T | SUNNYVALE | – | – | yes |
| 408-733 | AT&T | SUNNYVALE | – | – | yes |
| 408-734 | AT&T | SUNNYVALE | – | yes | yes |
| 408-735 | AT&T | SUNNYVALE | – | – | yes |
| 408-736 | AT&T | SUNNYVALE | – | – | yes |
| 408-737 | AT&T | SUNNYVALE | – | – | yes |
| 408-738 | AT&T | SUNNYVALE | – | yes | yes |
| 408-739 | AT&T | SUNNYVALE | – | – | yes |
| 408-740 | IP HORIZON LLC | SARATOGA | – | yes | yes |
| 408-741 | AT&T | SARATOGA | – | yes | yes |
| 408-742 | AT&T | SUNNYVALE | – | – | yes |
| 408-743 | AT&T | SUNNYVALE | – | yes | yes |
| 408-744 | AT&T | SUNNYVALE | – | yes | yes |
| 408-745 | AT&T | SUNNYVALE | – | yes | yes |
| 408-746 | AT&T | SUNNYVALE | – | yes | yes |
| 408-747 | AT&T | SUNNYVALE | – | yes | yes |
| 408-748 | AT&T | SNJS WEST | – | yes | yes |
| 408-749 | AT&T | SUNNYVALE | – | – | yes |
| 408-750 | AT&T | SNJS NORTH | 2001-03-08 | yes | yes |
| 408-751 | AT&T | SNJS NORTH | 2008-03-11 | yes | yes |
| 408-752 | AT&T | SUNNYVALE | – | yes | yes |
| 408-753 | Verizon | SNJS WEST | 2010-08-03 | yes | yes |
| 408-754 | TPx | SNJS SOUTH | 2001-03-01 | yes | yes |
| 408-755 | Onvoy | SNJS WEST | – | yes | yes |
| 408-756 | AT&T | SUNNYVALE | – | – | yes |
| 408-757 | T-Mobile | SUNNYVALE | – | yes | yes |
| 408-758 | Onvoy | SNJS WEST | – | yes | yes |
| 408-759 | AT&T | SNJS SOUTH | 2008-07-07 | yes | yes |
| 408-760 | UTILITY TELECOM GROUP, LLC - CA | SNJS WEST | – | yes | yes |
| 408-761 | Verizon | CAMPBELL | – | yes | yes |
| 408-762 | Onvoy | MORGANHILL | – | yes | yes |
| 408-763 | Verizon | MORGANHILL | – | yes | yes |
| 408-764 | AT&T | SNJS WEST | – | yes | yes |
| 408-765 | Verizon | SNJS WEST | – | – | yes |
| 408-766 | Onvoy | SNJS SOUTH | – | yes | yes |
| 408-767 | T-Mobile | GILROY | 2011-08-01 | yes | yes |
| 408-768 | AT&T | SNJS WEST | – | – | yes |
| 408-769 | Verizon | SUNNYVALE | – | yes | yes |
| 408-770 | Comcast | SNJS NORTH | 2008-07-31 | yes | yes |
| 408-771 | T-Mobile | SNJS WEST | 2001-01-25 | yes | yes |
| 408-772 | AT&T | SNJS WEST | – | – | yes |
| 408-773 | AT&T | SUNNYVALE | – | yes | yes |
| 408-774 | AT&T | SUNNYVALE | – | yes | yes |
| 408-775 | T-Mobile | SNJS NORTH | 2008-06-25 | yes | yes |
| 408-776 | Frontier | MORGANHILL | – | – | yes |
| 408-777 | AT&T | SNJS WEST | – | yes | yes |
| 408-778 | Frontier | MORGANHILL | – | – | yes |
| 408-779 | Frontier | MORGANHILL | – | – | yes |
| 408-780 | Bandwidth | SNJS WEST | 2011-08-04 | yes | yes |
| 408-781 | Verizon | SNJS WEST | – | – | yes |
| 408-782 | Frontier | MORGANHILL | – | yes | yes |
| 408-783 | AT&T | SNJS WEST | 2011-07-08 | yes | yes |
| 408-784 | AT&T | SNJS SOUTH | 2011-09-19 | yes | yes |
| 408-785 | Bandwidth | SNJS WEST | 2010-07-19 | yes | yes |
| 408-786 | XO CALIFORNIA, INC. | SNJS NORTH | 2005-06-01 | yes | yes |
| 408-787 | Spok | SNJS WEST | – | – | yes |
| 408-788 | Spok | SNJS WEST | – | – | yes |
| 408-789 | Verizon | SUNNYVALE | – | yes | yes |
| 408-790 | Verizon | SNJS WEST | – | yes | yes |
| 408-791 | T-Mobile | SNJS NORTH | 2010-08-30 | yes | yes |
| 408-792 | AT&T | SNJS WEST | – | yes | yes |
| 408-793 | AT&T | SNJS WEST | – | – | yes |
| 408-794 | AT&T | SNJS WEST | – | yes | yes |
| 408-795 | AT&T | SNJS WEST | – | – | yes |
| 408-796 | AT&T | CAMPBELL | – | yes | yes |
| 408-797 | AT&T | SNJS NORTH | 2012-10-16 | yes | yes |
| 408-798 | Spok | SNJS WEST | – | – | yes |
| 408-799 | AT&T | SNJS WEST | – | – | yes |
| 408-800 | Onvoy | SNJS SOUTH | – | yes | yes |
| 408-801 | Lumen | SNJS NORTH | 2006-01-20 | yes | yes |
| 408-802 | AT&T | SNJS NORTH | 2002-05-17 | – | yes |
| 408-803 | AT&T | SALINAS | – | yes | yes |
| 408-804 | Verizon | HOLLISTER | – | yes | yes |
| 408-805 | AT&T | SARATOGA | 2001-03-22 | yes | yes |
| 408-806 | AT&T | SNJS WEST | – | – | yes |
| 408-807 | AT&T | SNJS WEST | – | – | yes |
| 408-808 | AT&T | SNJS WEST | – | – | yes |
| 408-809 | Peerless | SNJS SOUTH | 2013-03-08 | yes | yes |
| 408-810 | AT&T | SALINAS | – | yes | yes |
| 408-812 | AT&T | SALINAS | – | yes | yes |
| 408-813 | AT&T | SNJS WEST | – | – | yes |
| 408-814 | Spok | SNJS WEST | – | – | yes |
| 408-815 | Spok | SNJS WEST | – | – | yes |
| 408-816 | Comcast | SNJS WEST | 2013-08-13 | yes | yes |
| 408-817 | AT&T | SNJS WEST | – | yes | yes |
| 408-818 | AT&T | SNJS NORTH | 2012-12-26 | yes | yes |
| 408-819 | Peerless | CAMPBELL | 2013-03-08 | yes | yes |
| 408-820 | Spok | SNJS WEST | – | – | yes |
| 408-821 | AT&T | SNJS WEST | – | – | yes |
| 408-822 | Verizon | SUNNYVALE | – | yes | yes |
| 408-823 | AT&T | SNJS WEST | – | – | yes |
| 408-824 | Verizon | SNJS NORTH | 2007-08-17 | yes | yes |
| 408-825 | AT&T | MORGANHILL | – | yes | yes |
| 408-826 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-827 | AT&T | LOS GATOS | – | yes | yes |
| 408-828 | Verizon | SNJS WEST | – | – | yes |
| 408-829 | T-Mobile | SNJS WEST | 2001-04-25 | yes | yes |
| 408-830 | AT&T | SUNNYVALE | – | yes | yes |
| 408-831 | Lumen | SNJS WEST | 2013-05-21 | yes | yes |
| 408-832 | AT&T | SNJS WEST | – | – | yes |
| 408-833 | Lumen | SNJS SOUTH | – | yes | yes |
| 408-834 | Lumen | SNJS NORTH | – | yes | yes |
| 408-835 | T-Mobile | SUNNYVALE | 2001-04-25 | yes | yes |
| 408-836 | T-Mobile | SUNNYVALE | 2001-04-25 | yes | yes |
| 408-837 | Lumen | SAN MARTIN | – | yes | yes |
| 408-838 | AT&T | SNJS WEST | – | – | yes |
| 408-839 | AT&T | SNJS WEST | – | – | yes |
| 408-840 | AT&T | GILROY | – | yes | yes |
| 408-841 | Lumen | SNJS SOUTH | 2006-02-23 | yes | yes |
| 408-842 | Frontier | GILROY | – | – | yes |
| 408-843 | Lumen | GILROY | – | yes | yes |
| 408-844 | AT&T | SNJS WEST | – | yes | yes |
| 408-845 | AT&T | SNJS WEST | – | – | yes |
| 408-846 | Frontier | GILROY | – | – | yes |
| 408-847 | Frontier | GILROY | – | – | yes |
| 408-848 | Frontier | GILROY | – | – | yes |
| 408-849 | Lumen | SNJS WEST | – | yes | yes |
| 408-850 | Lumen | SNJS WEST | – | – | yes |
| 408-851 | AT&T | SNJS WEST | 2004-03-17 | yes | yes |
| 408-852 | Lumen | GILROY | – | yes | yes |
| 408-853 | AT&T | SNJS NORTH | – | – | yes |
| 408-854 | Lumen | SNJS NORTH | 2006-02-28 | yes | yes |
| 408-855 | AT&T | SNJS WEST | – | yes | yes |
| 408-856 | Verizon | SNJS NORTH | – | yes | yes |
| 408-857 | Verizon | SNJS WEST | – | – | yes |
| 408-858 | AT&T | SNJS WEST | – | – | yes |
| 408-859 | AT&T | SNJS WEST | – | – | yes |
| 408-860 | Spok | SNJS WEST | – | – | yes |
| 408-861 | AT&T | SNJS WEST | – | yes | yes |
| 408-862 | AT&T | SNJS WEST | – | – | yes |
| 408-863 | AT&T | SNJS WEST | – | yes | yes |
| 408-864 | AT&T | SNJS WEST | – | – | yes |
| 408-865 | AT&T | SNJS WEST | – | yes | yes |
| 408-866 | AT&T | CAMPBELL | – | yes | yes |
| 408-867 | AT&T | SARATOGA | – | – | yes |
| 408-868 | AT&T | SARATOGA | – | yes | yes |
| 408-869 | Verizon | SNJS WEST | – | yes | yes |
| 408-870 | Spok | SNJS WEST | – | – | yes |
| 408-871 | AT&T | CAMPBELL | – | – | yes |
| 408-872 | AT&T | SARATOGA | – | yes | yes |
| 408-873 | AT&T | SNJS WEST | – | – | yes |
| 408-874 | AT&T | CAMPBELL | – | yes | yes |
| 408-875 | Verizon | SNJS NORTH | – | – | yes |
| 408-876 | Verizon | SNJS NORTH | – | yes | yes |
| 408-877 | Onvoy | SARATOGA | – | yes | yes |
| 408-878 | Verizon | SNJS WEST | – | yes | yes |
| 408-879 | AT&T | CAMPBELL | – | – | yes |
| 408-880 | 33 WIRELESS INC. | SNJS SOUTH | – | – | yes |
| 408-881 | AT&T | SNJS WEST | – | yes | yes |
| 408-882 | AT&T | SNJS WEST | – | yes | yes |
| 408-883 | Bandwidth | SNJS NORTH | 2010-09-30 | yes | yes |
| 408-884 | Lumen | LOS GATOS | – | yes | yes |
| 408-885 | AT&T | SNJS WEST | – | – | yes |
| 408-886 | TPx | SNJS WEST | 2006-01-18 | yes | yes |
| 408-887 | AT&T | SNJS NORTH | – | – | yes |
| 408-888 | AT&T | SNJS WEST | – | – | yes |
| 408-889 | Onvoy | SNJS NORTH | – | yes | yes |
| 408-890 | Lumen | SNJS NORTH | 2006-09-05 | yes | yes |
| 408-891 | Verizon | SNJS WEST | – | – | yes |
| 408-892 | Verizon | SNJS WEST | – | – | yes |
| 408-893 | AT&T | SNJS WEST | – | – | yes |
| 408-894 | AT&T | SNJS NORTH | – | – | yes |
| 408-895 | AT&T | SNJS NORTH | – | – | yes |
| 408-896 | AT&T | SNJS WEST | – | – | yes |
| 408-897 | GLOBAL VALLEY NETWORKS | SANANTONIO | – | yes | yes |
| 408-898 | T-Mobile | SARATOGA | 2001-10-18 | yes | yes |
| 408-899 | Comcast | SNJS WEST | 2008-06-25 | yes | yes |
| 408-900 | Onvoy | SUNNYVALE | – | yes | yes |
| 408-901 | AT&T | SNJS NORTH | 2012-12-24 | yes | yes |
| 408-902 | AT&T | SNJS NORTH | – | – | yes |
| 408-903 | IP HORIZON LLC | SNJS SOUTH | – | yes | yes |
| 408-904 | AT&T | SNJS NORTH | – | yes | yes |
| 408-905 | Bandwidth | SNJS WEST | 2008-08-08 | yes | yes |
| 408-906 | AT&T | SNJS NORTH | 2012-12-24 | yes | yes |
| 408-907 | Lumen | SNJS NORTH | – | – | yes |
| 408-908 | AT&T | SNJS NORTH | 2012-12-24 | yes | yes |
| 408-909 | Peerless | SAN MARTIN | 2013-03-08 | yes | yes |
| 408-910 | T-Mobile | SUNNYVALE | 2001-04-25 | yes | yes |
| 408-912 | Lumen | SNJS SOUTH | – | yes | yes |
| 408-913 | TPx | SARATOGA | – | yes | yes |
| 408-914 | Verizon | SNJS NORTH | – | yes | yes |
| 408-915 | Verizon | CAMPBELL | 2010-08-10 | yes | yes |
| 408-916 | AT&T | SNJS WEST | – | yes | yes |
| 408-917 | AT&T | SNJS NORTH | 2012-12-24 | yes | yes |
| 408-918 | AT&T | SNJS WEST | – | – | yes |
| 408-919 | AT&T | SNJS WEST | – | yes | yes |
| 408-920 | AT&T | SNJS WEST | – | – | yes |
| 408-921 | AT&T | SNJS WEST | – | – | yes |
| 408-922 | AT&T | SNJS NORTH | – | yes | yes |
| 408-923 | AT&T | SNJS NORTH | – | – | yes |
| 408-924 | AT&T | SNJS WEST | – | – | yes |
| 408-925 | AT&T | SNJS WEST | – | – | yes |
| 408-926 | AT&T | SNJS NORTH | – | – | yes |
| 408-927 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-928 | AT&T | SNJS NORTH | – | yes | yes |
| 408-929 | AT&T | SNJS NORTH | – | – | yes |
| 408-930 | AT&T | SNJS WEST | – | – | yes |
| 408-931 | AT&T | SNJS WEST | 2006-03-23 | yes | yes |
| 408-932 | Spok | SNJS WEST | – | – | yes |
| 408-933 | Verizon | SNJS NORTH | – | yes | yes |
| 408-934 | AT&T | SNJS NORTH | – | yes | yes |
| 408-935 | AT&T | SNJS NORTH | – | yes | yes |
| 408-936 | AT&T | SUNNYVALE | – | – | yes |
| 408-937 | AT&T | SNJS NORTH | – | – | yes |
| 408-938 | AT&T | SNJS WEST | – | – | yes |
| 408-939 | Onvoy | SNJS SOUTH | 2026-05-21 | yes | yes |
| 408-940 | Lumen | SUNNYVALE | 2008-05-28 | yes | yes |
| 408-941 | AT&T | SNJS NORTH | – | yes | yes |
| 408-942 | AT&T | SNJS NORTH | – | – | yes |
| 408-943 | AT&T | SNJS NORTH | – | – | yes |
| 408-944 | AT&T | SNJS NORTH | – | yes | yes |
| 408-945 | AT&T | SNJS NORTH | – | – | yes |
| 408-946 | AT&T | SNJS NORTH | – | – | yes |
| 408-947 | AT&T | SNJS WEST | – | – | yes |
| 408-948 | Spok | SNJS WEST | – | – | yes |
| 408-949 | Spok | SNJS WEST | – | – | yes |
| 408-951 | Spok | SNJS WEST | – | – | yes |
| 408-952 | AT&T | SNJS NORTH | – | yes | yes |
| 408-953 | AT&T | SNJS NORTH | – | – | yes |
| 408-954 | AT&T | SNJS NORTH | – | – | yes |
| 408-955 | AT&T | SNJS NORTH | – | – | yes |
| 408-956 | AT&T | SNJS NORTH | – | yes | yes |
| 408-957 | AT&T | SNJS NORTH | – | – | yes |
| 408-960 | AT&T | SNJS SOUTH | – | yes | yes |
| 408-961 | AT&T | SNJS WEST | – | – | yes |
| 408-962 | AT&T | SUNNYVALE | – | yes | yes |
| 408-963 | AT&T | CAMPBELL | – | yes | yes |
| 408-964 | AT&T | SNJS NORTH | – | yes | yes |
| 408-965 | AT&T | SNJS NORTH | – | yes | yes |
| 408-966 | Verizon | SNJS WEST | – | yes | yes |
| 408-967 | AT&T | SNJS WEST | – | – | yes |
| 408-968 | Verizon | SALINAS | – | yes | yes |
| 408-969 | AT&T | SNJS WEST | – | yes | yes |
| 408-970 | AT&T | SNJS WEST | – | yes | yes |
| 408-971 | AT&T | SNJS WEST | – | – | yes |
| 408-972 | AT&T | SNJS SOUTH | – | – | yes |
| 408-973 | AT&T | SNJS WEST | – | yes | yes |
| 408-974 | AT&T | SNJS WEST | – | – | yes |
| 408-975 | AT&T | SNJS WEST | – | yes | yes |
| 408-976 | NORTH COUNTY COMMUNICATION CORPORATION - CA | XXXXXXXXXX | 2011-06-08 | – | yes |
| 408-977 | AT&T | SNJS WEST | – | – | yes |
| 408-978 | AT&T | SNJS SOUTH | – | – | yes |
| 408-979 | AT&T | SNJS SOUTH | – | – | yes |
| 408-980 | AT&T | SNJS WEST | – | – | yes |
| 408-981 | AT&T | SNJS WEST | – | – | yes |
| 408-982 | AT&T | SNJS WEST | – | yes | yes |
| 408-983 | AT&T | SNJS WEST | – | – | yes |
| 408-984 | AT&T | SNJS WEST | – | – | yes |
| 408-985 | AT&T | SNJS WEST | – | yes | yes |
| 408-986 | AT&T | SNJS WEST | – | – | yes |
| 408-987 | AT&T | SNJS WEST | – | yes | yes |
| 408-988 | AT&T | SNJS WEST | – | yes | yes |
| 408-989 | AT&T | SNJS WEST | – | yes | yes |
| 408-990 | Verizon | SUNNYVALE | – | yes | yes |
| 408-991 | AT&T | SUNNYVALE | – | yes | yes |
| 408-992 | AT&T | SUNNYVALE | – | yes | yes |
| 408-993 | AT&T | SNJS WEST | – | yes | yes |
| 408-994 | AT&T | SNJS WEST | – | yes | yes |
| 408-995 | AT&T | SNJS WEST | – | – | yes |
| 408-996 | AT&T | SNJS WEST | – | – | yes |
| 408-997 | AT&T | SNJS SOUTH | – | – | yes |
| 408-998 | AT&T | SNJS WEST | – | – | yes |
| 408-999 | AT&T | SNJS WEST | – | yes | yes |
Frequently asked
How many prefixes does area code 408 have?
787 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,870 thousand-number ranges across 14 rate centers.
What do the first three digits after 408 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 408 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 408 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 442 of 408'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