Sausalito, CA — rate center
- State
- California
- Active prefixes
- 25
- Carriers
- 13
- Pooled prefixes
- 23
- LATA
- 722
- Metro area
- San Francisco-Oakland-Fremont, CA MSA
In NANP numbering, Sausalito, California is a rate center — the anchor point for local numbers. It is reached through 415, 628 (multiple area codes serve it).
The rate center currently carries 25 working prefixes, held by 13 different carriers. Pooling applies to 23 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 722.
Because 415, 628 all serve this territory, two Sausalito numbers can look completely different while being neighbors — check the prefix, not just the area code.
A Sausalito 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 Sausalito
| Prefix | Code holder | Pooled |
|---|---|---|
| 415-272 | NEW CINGULAR WIRELESS PCS, LLC | Yes |
| 415-275 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 415-289 | PACIFIC BELL | Yes |
| 415-324 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Yes |
| 415-331 | PACIFIC BELL | No |
| 415-332 | PACIFIC BELL | No |
| 415-339 | PACIFIC BELL | Yes |
| 415-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 415-415 | WIDE VOICE, LLC - CA | Yes |
| 415-465 | T-MOBILE USA, INC. | Yes |
| 415-480 | ONVOY, LLC - CA | Yes |
| 415-687 | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Yes |
| 415-729 | ONVOY, LLC - CA | Yes |
| 415-754 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 415-855 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 415-887 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | Yes |
| 415-942 | BANDWIDTH.COM CLEC, LLC - CA | Yes |
| 415-944 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
FAQ
What area code is Sausalito, CA?
Sausalito is served by 2 area codes — 415, 628 — which overlay the same territory.
How many prefixes does Sausalito have?
25 active NXX prefixes are anchored to this rate center in NANPA records, held by 13 carriers.
Is a call from a Sausalito prefix really from Sausalito?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.