San Martin, CA — rate center
- State
- California
- Active prefixes
- 22
- Carriers
- 9
- Pooled prefixes
- 22
- LATA
- 722
- Metro area
- San Jose-Sunnyvale-Santa Clara, CA MSA
The San Martin rate center (California) anchors 22 active prefixes under area codes 408, 669. Rate centers, not city limits, are what phone numbers are legally tied to.
The rate center currently carries 22 working prefixes across 9 carriers. 22 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 722.
Multiple area codes over one rate center (408/669) is the overlay pattern: same geography, different first three digits.
A San Martin prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to San Martin
| Prefix | Code holder | Pooled |
|---|---|---|
| 408-214 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 408-312 | BOOST SUBSCRIBERCO L.L.C. | Yes |
| 408-422 | T-MOBILE USA, INC. | Yes |
| 408-461 | T-MOBILE USA, INC. | Yes |
| 408-634 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Yes |
| 408-657 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 408-676 | ONVOY, LLC - CA | Yes |
| 408-681 | PACIFIC BELL | Yes |
| 408-682 | PACIFIC BELL | Yes |
| 408-683 | PACIFIC BELL | Yes |
| 408-686 | PACIFIC BELL | Yes |
| 408-692 | ONVOY, LLC - CA | Yes |
| 408-695 | PACIFIC BELL | Yes |
| 408-837 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 408-909 | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Yes |
FAQ
What area code is San Martin, CA?
San Martin is served by 2 area codes — 408, 669 — which overlay the same territory.
How many prefixes does San Martin have?
22 active NXX prefixes are anchored to this rate center in NANPA records, held by 9 carriers.
Is a call from a San Martin prefix really from San Martin?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.