Prefix 408-642 — San Jose:west Da, CA
- Area code
- 408
- Prefix (NXX)
- 642
- Rate center
- San Jose:west Da
- State
- California
- Time zone
- Pacific
- Code holder
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
- OCN
- 6006
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2007-09-19
- LATA
- 722
408-642 identifies a block of numbers in San Jose:west Da, CA, within the 408 area code. Every US prefix is tied to exactly one rate center; this one is San Jose:west Da.
The rate center lies in the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area. The serving LATA is 722. Local time follows the Pacific zone.
Treat the on-screen number as a hint, not evidence — 408-642 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
The assigned code holder is CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA, operating company number 6006, assigned September 19, 2007. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 408-639 | San Jose:west Da | T-MOBILE USA, INC. |
| 408-640 | San Jose:west Da | METROPCS, INC. |
| 408-641 | San Jose:west Da | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 408-643 | San Jose:north Da | T-MOBILE USA, INC. |
| 408-644 | San Jose:south Da | T-MOBILE USA, INC. |
| 408-645 | San Jose:west Da | BANDWIDTH.COM CLEC, LLC - CA |
FAQ
Where is 408-642 located?
The prefix is assigned to the San Jose:west Da rate center in CA, area code 408. It is part of the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area.
Which company owns 408-642 numbers?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 408-642 safe to answer?
The prefix itself says nothing about the caller. Legitimate San Jose:west Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.