Prefix 408-303 — Saratoga, CA
408-303 identifies a block of numbers in Saratoga, CA, within the 408 area code. Every US prefix is tied to exactly one rate center; this one is Saratoga.
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 — 408-303 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.
Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned July 13, 2023. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 408-303 numbers may be served by different companies.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 408-300 | San Jose:south Da | COMCAST PHONE OF CALIFORNIA, LLC |
| 408-301 | San Jose:west Da | SPOK, INC. |
| 408-302 | San Jose:west Da | ONVOY, LLC - CA |
| 408-304 | Saratoga | T-MOBILE USA, INC. |
| 408-305 | San Jose:west Da | SPOK, INC. |
| 408-306 | Sunnyvale | NEW CINGULAR WIRELESS PCS, LLC |
FAQ
Where is 408-303 located?
The prefix is assigned to the Saratoga rate center in CA, area code 408. It is part of the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area.
Which company owns 408-303 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 408-303 safe to answer?
The prefix itself says nothing about the caller. Legitimate Saratoga businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.