Prefix 408-673 — San Jose:west Da, CA
- Area code
- 408
- Prefix (NXX)
- 673
- Rate center
- San Jose:west Da
- State
- California
- Time zone
- Pacific
- Code holder
- MCIMETRO ACCESS TRANSMISSION SERVICES LLC
- OCN
- 7229
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2010-03-31
- LATA
- 722
408-673 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 — 408-673 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.
NANPA's central-office code records list MCIMETRO ACCESS TRANSMISSION SERVICES LLC (OCN 7229) as the code holder, assigned March 31, 2010. Because 408-673 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 408-670 | Salinas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-671 | Salinas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-672 | Salinas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-674 | San Jose:west Da | NEW CINGULAR WIRELESS PCS, LLC |
| 408-675 | Sunnyvale | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 408-676 | San Martin | ONVOY, LLC - CA |
FAQ
Where is 408-673 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 408-673 numbers?
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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 408-673 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.