San Antonio, CA — rate center
- State
- California
- Active prefixes
- 2
- Carriers
- 2
- Pooled prefixes
- 2
- LATA
- 722
- Metro area
- San Jose-Sunnyvale-Santa Clara, CA MSA
San Antonio is a telephone rate center in California served by area codes 408, 669. A rate center is the locality the phone industry uses to anchor numbers for billing; every prefix listed below is registered here.
The rate center currently carries 2 working prefixes, held by 2 different carriers. Pooling applies to 2 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 722.
Because 408, 669 all serve this territory, two San Antonio numbers can look completely different while being neighbors — check the prefix, not just the area code.
San Antonio is a small rate center: 2 prefixes across 2 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.
A San Antonio 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 Antonio
| Prefix | Code holder | Pooled |
|---|---|---|
| 408-897 | GLOBAL VALLEY NETWORKS | Yes |
FAQ
What area code is San Antonio, CA?
San Antonio is served by 2 area codes — 408, 669 — which overlay the same territory.
How many prefixes does San Antonio have?
2 active NXX prefixes are anchored to this rate center in NANPA records, held by 2 carriers.
Is a call from a San Antonio prefix really from San Antonio?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.