Prefix 415-463 — San Francisco:montrose-evergreen Da, CA

NANPA CO code assignment, current as of July 28, 2026.

The 415-463 prefix belongs to area code 415 and is anchored to the San Francisco:montrose-evergreen Da rate center (CA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

San Francisco:montrose-evergreen Da is part of the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 722. Numbers here keep Pacific time.

Code-holder of record: LEVEL 3 COMMUNICATIONS, LLC - CA (OCN 8826), assigned May 25, 2012. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 415-463 numbers may be served by different companies.

Caller ID showing 415-463 is not proof the call came from San Francisco:montrose-evergreen Da: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.

Neighboring prefixes

FAQ

Where is 415-463 located?

The prefix is assigned to the San Francisco:montrose-evergreen Da rate center in CA, area code 415. It is part of the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area.

Which company owns 415-463 numbers?

LEVEL 3 COMMUNICATIONS, 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 415-463 safe to answer?

The prefix itself says nothing about the caller. Legitimate San Francisco:montrose-evergreen Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.