San Rafael, CA — rate center
- State
- California
- Active prefixes
- 78
- Carriers
- 18
- Pooled prefixes
- 54
- LATA
- 722
- Metro area
- San Francisco-Oakland-Fremont, CA MSA
The San Rafael rate center (California) anchors 78 active prefixes under area codes 415, 628. Rate centers, not city limits, are what phone numbers are legally tied to.
The rate center currently carries 78 working prefixes across 18 carriers. 54 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 722.
Multiple area codes over one rate center (415/628) is the overlay pattern: same geography, different first three digits.
A San Rafael 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 Rafael
| Prefix | Code holder | Pooled |
|---|---|---|
| 415-223 | ONVOY, LLC - CA | Yes |
| 415-226 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 415-233 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 415-250 | NEW CINGULAR WIRELESS PCS, LLC | No |
| 415-256 | PACIFIC BELL | Yes |
| 415-257 | PACIFIC BELL | No |
| 415-258 | PACIFIC BELL | No |
| 415-259 | PACIFIC BELL | Yes |
| 415-261 | METROPCS, INC. | Yes |
| 415-295 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 415-299 | T-MOBILE USA, INC. | Yes |
| 415-300 | NEW CINGULAR WIRELESS PCS, LLC | Yes |
| 415-302 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | No |
| 415-306 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 415-342 | NEW CINGULAR WIRELESS PCS, LLC | Yes |
| 415-419 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | Yes |
| 415-444 | PACIFIC BELL | Yes |
| 415-446 | PACIFIC BELL | Yes |
| 415-448 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 415-450 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Yes |
| 415-451 | PACIFIC BELL | No |
| 415-453 | PACIFIC BELL | No |
| 415-454 | PACIFIC BELL | No |
| 415-455 | PACIFIC BELL | Yes |
| 415-456 | PACIFIC BELL | No |
| 415-457 | PACIFIC BELL | No |
| 415-458 | PACIFIC BELL | Yes |
| 415-459 | PACIFIC BELL | No |
| 415-460 | PACIFIC BELL | Yes |
| 415-461 | PACIFIC BELL | No |
| 415-462 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 415-464 | PACIFIC BELL | Yes |
| 415-472 | PACIFIC BELL | Yes |
| 415-473 | PACIFIC BELL | No |
| 415-479 | PACIFIC BELL | No |
| 415-482 | PACIFIC BELL | Yes |
| 415-485 | PACIFIC BELL | No |
| 415-488 | PACIFIC BELL | Yes |
| 415-491 | PACIFIC BELL | No |
| 415-492 | PACIFIC BELL | Yes |
| 415-497 | NEW CINGULAR WIRELESS PCS, LLC | No |
| 415-499 | PACIFIC BELL | Yes |
| 415-507 | PACIFIC BELL | Yes |
| 415-521 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Yes |
| 415-524 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Yes |
| 415-526 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | Yes |
| 415-532 | ONVOY, LLC - CA | Yes |
| 415-578 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 415-686 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Yes |
| 415-717 | NEW CINGULAR WIRELESS PCS, LLC | No |
| 415-720 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | No |
| 415-721 | PACIFIC BELL | No |
| 415-726 | T-MOBILE USA, INC. | Yes |
| 415-747 | T-MOBILE USA, INC. | Yes |
| 415-755 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | Yes |
| 415-784 | UTILITY TELECOM GROUP, LLC - CA | No |
| 415-785 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | Yes |
| 415-838 | AMERICAN MESSAGING SERVICES, LLC | No |
| 415-847 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | No |
| 415-870 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
| 415-925 | PACIFIC BELL | No |
| 415-991 | LEVEL 3 COMMUNICATIONS, LLC - CA | Yes |
FAQ
What area code is San Rafael, CA?
San Rafael is served by 2 area codes — 415, 628 — which overlay the same territory.
How many prefixes does San Rafael have?
78 active NXX prefixes are anchored to this rate center in NANPA records, held by 18 carriers.
Is a call from a San Rafael prefix really from San Rafael?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.