Prefix 408-643 — San Jose:north Da, CA
- Area code
- 408
- Prefix (NXX)
- 643
- Rate center
- San Jose:north Da
- State
- California
- Time zone
- Pacific
- Code holder
- T-MOBILE USA, INC.
- OCN
- 6529
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2011-10-21
- LATA
- 722
A phone number starting 408-643 was issued in the San Jose:north Da rate center of CA — part of area code 408.
Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned October 21, 2011. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 408-643 numbers may be served by different companies.
A scammer can display 408-643 without ever touching CA. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
San Jose:north Da is part of the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 722. Numbers here keep Pacific time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 408-640 | San Jose:west Da | METROPCS, INC. |
| 408-641 | San Jose:west Da | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 408-642 | San Jose:west Da | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-644 | San Jose:south Da | T-MOBILE USA, INC. |
| 408-645 | San Jose:west Da | BANDWIDTH.COM CLEC, LLC - CA |
| 408-646 | San Jose:west Da | T-MOBILE USA, INC. |
FAQ
Where is 408-643 located?
The prefix is assigned to the San Jose:north Da rate center in CA, area code 408. It is part of the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area.
Which company owns 408-643 numbers?
T-MOBILE USA, INC. 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 408-643 safe to answer?
The prefix itself says nothing about the caller. Legitimate San Jose:north Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.