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31 prefixes in 408 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 408-217 | SNJS WEST | 8826 | 2007-11-28 | Yes |
| 408-329 | SUNNYVALE | 8826 | 2002-09-16 | Yes |
| 408-333 | SNJS SOUTH | 8826 | — | Yes |
| 408-389 | SNJS SOUTH | 8826 | 2011-05-06 | Yes |
| 408-404 | SNJS NORTH | 8826 | — | Yes |
| 408-457 | SNJS NORTH | 8826 | 2006-12-12 | Yes |
| 408-469 | SUNNYVALE | 8826 | — | Yes |
| 408-550 | SNJS WEST | 8826 | — | Yes |
| 408-624 | SNJS SOUTH | 8826 | — | Yes |
| 408-625 | SNJS WEST | 8826 | 2001-01-24 | Yes |
| 408-628 | CAMPBELL | 8826 | — | Yes |
| 408-662 | SNJS NORTH | 8826 | 2011-05-26 | Yes |
| 408-675 | SUNNYVALE | 8826 | 2010-06-04 | Yes |
| 408-684 | SNJS NORTH | 8826 | 2010-06-04 | Yes |
| 408-688 | CAMPBELL | 8826 | — | Yes |
| 408-689 | SNJS WEST | 8826 | — | Yes |
| 408-701 | SUNNYVALE | 8826 | — | Yes |
| 408-717 | SNJS SOUTH | 8826 | — | Yes |
| 408-801 | SNJS NORTH | 8826 | 2006-01-20 | Yes |
| 408-831 | SNJS WEST | 8826 | 2013-05-21 | Yes |
| 408-837 | SAN MARTIN | 8826 | — | Yes |
| 408-841 | SNJS SOUTH | 8826 | 2006-02-23 | Yes |
| 408-849 | SNJS WEST | 8826 | — | Yes |
| 408-850 | SNJS WEST | 8826 | — | — |
| 408-852 | GILROY | 8826 | — | Yes |
| 408-854 | SNJS NORTH | 8826 | 2006-02-28 | Yes |
| 408-884 | LOS GATOS | 8826 | — | Yes |
| 408-890 | SNJS NORTH | 8826 | 2006-09-05 | Yes |
| 408-907 | SNJS NORTH | 8826 | — | — |
| 408-912 | SNJS SOUTH | 8826 | — | Yes |
| 408-940 | SUNNYVALE | 8826 | 2008-05-28 | 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.