All assignees
800 prefixes in 408 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 408-300 | SNJS SOUTH | 394L | 2008-08-11 | Yes |
| 408-301 | SNJS WEST | 6630 | — | — |
| 408-302 | SNJS WEST | 649C | 2023-09-19 | Yes |
| 408-303 | SARATOGA | 6529 | 2023-07-13 | Yes |
| 408-304 | SARATOGA | 6529 | 2024-02-29 | Yes |
| 408-305 | SNJS WEST | 6630 | — | — |
| 408-306 | SUNNYVALE | 6010 | 2001-06-25 | Yes |
| 408-307 | SNJS WEST | 6010 | — | — |
| 408-308 | SNJS WEST | 6630 | — | — |
| 408-309 | SNJS WEST | 6006 | — | — |
| 408-310 | MORGANHILL | 6529 | 2001-12-26 | Yes |
| 408-311 | XXXXXXXXXX | MULT | — | — |
| 408-312 | SAN MARTIN | 490J | 2023-05-09 | Yes |
| 408-313 | SNJS WEST | 6006 | — | — |
| 408-314 | SNJS WEST | 6006 | — | — |
| 408-315 | SNJS WEST | 6006 | — | — |
| 408-316 | SNJS WEST | 6006 | — | — |
| 408-317 | LOS GATOS | 649C | — | Yes |
| 408-318 | SNJS WEST | 6006 | — | Yes |
| 408-319 | SALINAS | 6006 | — | Yes |
| 408-320 | SNJS WEST | 516C | 2010-03-24 | Yes |
| 408-321 | SNJS NORTH | 9740 | — | — |
| 408-322 | SNJS WEST | 6630 | — | — |
| 408-323 | SNJS SOUTH | 9740 | — | Yes |
| 408-324 | SNJS NORTH | 9740 | — | Yes |
| 408-325 | SNJS NORTH | 9740 | — | — |
| 408-326 | SNJS WEST | 9740 | — | Yes |
| 408-327 | SNJS WEST | 9740 | — | — |
| 408-328 | SUNNYVALE | 9740 | — | — |
| 408-329 | SUNNYVALE | 8826 | 2002-09-16 | Yes |
| 408-330 | SNJS WEST | 9740 | — | — |
| 408-331 | SUNNYVALE | 7229 | — | — |
| 408-332 | SNJS WEST | 6010 | — | Yes |
| 408-333 | SNJS SOUTH | 8826 | — | Yes |
| 408-334 | SNJS WEST | 6010 | — | Yes |
| 408-335 | LOS GATOS | 2319 | — | Yes |
| 408-336 | SUNNYVALE | 9740 | 2006-04-19 | Yes |
| 408-337 | GILROY | 792K | 2009-06-18 | Yes |
| 408-338 | SUNNYVALE | 9740 | 2006-04-07 | Yes |
| 408-339 | SNJS WEST | 9740 | — | — |
| 408-340 | CAMPBELL | 7229 | — | Yes |
| 408-341 | CAMPBELL | 9740 | — | Yes |
| 408-342 | SNJS WEST | 9740 | — | Yes |
| 408-343 | SNJS WEST | 9740 | — | Yes |
| 408-344 | SNJS WEST | 6967 | — | — |
| 408-345 | SNJS WEST | 9740 | — | Yes |
| 408-346 | SNJS WEST | 7229 | — | — |
| 408-347 | SNJS NORTH | 9740 | — | — |
| 408-348 | LOS GATOS | 6010 | — | — |
| 408-349 | SUNNYVALE | 7229 | — | — |
| 408-350 | SNJS WEST | 7229 | — | — |
| 408-351 | SNJS WEST | 649C | — | — |
| 408-352 | SNJS WEST | 7145 | — | Yes |
| 408-353 | LOS GATOS | 2319 | — | Yes |
| 408-354 | LOS GATOS | 2319 | — | — |
| 408-355 | LOS GATOS | 7480 | — | Yes |
| 408-356 | LOS GATOS | 2319 | — | — |
| 408-357 | LOS GATOS | 2319 | — | Yes |
| 408-358 | LOS GATOS | 2319 | — | — |
| 408-359 | SARATOGA | 7229 | — | Yes |
| 408-360 | SNJS SOUTH | 9740 | — | Yes |
| 408-361 | SNJS SOUTH | 9740 | — | Yes |
| 408-362 | SNJS SOUTH | 9740 | — | Yes |
| 408-363 | SNJS SOUTH | 9740 | — | — |
| 408-364 | CAMPBELL | 9740 | — | Yes |
| 408-365 | SNJS SOUTH | 9740 | — | Yes |
| 408-366 | SNJS WEST | 9740 | — | Yes |
| 408-367 | SNJS WEST | 7229 | — | Yes |
| 408-368 | SUNNYVALE | 6010 | 2002-02-22 | Yes |
| 408-369 | CAMPBELL | 9740 | — | — |
| 408-370 | CAMPBELL | 9740 | — | Yes |
| 408-371 | CAMPBELL | 9740 | — | — |
| 408-372 | SNJS NORTH | 649C | 2008-10-13 | Yes |
| 408-373 | SUNNYVALE | 6529 | — | Yes |
| 408-374 | CAMPBELL | 9740 | — | — |
| 408-375 | CAMPBELL | 6529 | — | Yes |
| 408-376 | CAMPBELL | 9740 | — | Yes |
| 408-377 | CAMPBELL | 9740 | — | — |
| 408-378 | CAMPBELL | 9740 | — | — |
| 408-379 | CAMPBELL | 9740 | — | — |
| 408-380 | SNJS WEST | 671J | — | Yes |
| 408-381 | SNJS WEST | 649C | 2021-09-16 | Yes |
| 408-382 | SNJS NORTH | 9740 | — | Yes |
| 408-383 | SNJS NORTH | 9740 | — | — |
| 408-384 | LOS GATOS | 671J | — | Yes |
| 408-385 | CAMPBELL | 671J | — | Yes |
| 408-386 | SNJS WEST | 6010 | 2001-08-22 | — |
| 408-387 | SNJS WEST | 9740 | — | Yes |
| 408-388 | SNJS WEST | 6630 | — | — |
| 408-389 | SNJS SOUTH | 8826 | 2011-05-06 | Yes |
| 408-390 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-391 | SNJS WEST | 6010 | — | — |
| 408-392 | SNJS WEST | 9740 | — | — |
| 408-393 | SUNNYVALE | 6529 | — | Yes |
| 408-394 | SUNNYVALE | 6529 | — | Yes |
| 408-395 | LOS GATOS | 2319 | — | — |
| 408-396 | SNJS WEST | 6529 | 2001-04-25 | Yes |
| 408-397 | SNJS WEST | 6630 | — | — |
| 408-398 | SNJS WEST | 6010 | — | — |
| 408-399 | LOS GATOS | 2319 | — | — |
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.