Prefix 415-525 — San Francisco:central Da, CA
- Area code
- 415
- Prefix (NXX)
- 525
- Rate center
- San Francisco:central Da
- State
- California
- Time zone
- Pacific
- Code holder
- UTILITY TELECOM GROUP, LLC - CA
- OCN
- 9262
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2007-08-16
- LATA
- 722
415-525 identifies a block of numbers in San Francisco:central Da, CA, within the 415 area code. Every US prefix is tied to exactly one rate center; this one is San Francisco:central Da.
The rate center lies in the San Francisco-Oakland-Fremont, 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 — 415-525 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.
NANPA's central-office code records list UTILITY TELECOM GROUP, LLC - CA (OCN 9262) as the code holder, assigned August 16, 2007. Because 415-525 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 415-522 | San Francisco:central Da | PACIFIC BELL |
| 415-523 | San Francisco:central Da | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 415-524 | San Rafael | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
| 415-526 | San Rafael | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 415-527 | San Francisco:central Da | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
| 415-528 | San Francisco:juniper Da | LEVEL 3 COMMUNICATIONS, LLC - CA |
FAQ
Where is 415-525 located?
The prefix is assigned to the San Francisco:central Da rate center in CA, area code 415. It is part of the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area.
Which company owns 415-525 numbers?
UTILITY TELECOM GROUP, LLC - CA 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 415-525 safe to answer?
The prefix itself says nothing about the caller. Legitimate San Francisco:central Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.