Prefix 415-304 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
304
State
California
Time zone
Pacific
Code holder
METROPCS, INC.
OCN
5562
Pooled
Yes (thousands-block pooling)
Assigned
2015-04-13
LATA
722

A phone number starting 415-304 was issued in the San Francisco:central Da rate center of CA — part of area code 415.

Code-holder of record: METROPCS, INC. (OCN 5562), assigned April 13, 2015. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 415-304 numbers may be served by different companies.

A scammer can display 415-304 without ever touching CA. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

San Francisco:central 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.

Neighboring prefixes

Prefixes adjacent to 415-304
PrefixRate centerCode holder
415-301 Novato T-MOBILE USA, INC.
415-302 San Rafael CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
415-303 San Francisco:central Da SPOK, INC.
415-305 San Francisco:central Da T-MOBILE USA, INC.
415-306 San Rafael MCIMETRO ACCESS TRANSMISSION SERVICES LLC
415-307 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC

FAQ

Where is 415-304 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 415-304 numbers?

METROPCS, INC. 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 415-304 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.