Prefix 415-635 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
635
State
California
Time zone
Pacific
Code holder
METROPCS, INC.
OCN
5562
Pooled
Yes (thousands-block pooling)
Assigned
2013-01-29
LATA
722

415-635 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 — 415-635 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.

The assigned code holder is METROPCS, INC., operating company number 5562, assigned January 29, 2013. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

Neighboring prefixes

Prefixes adjacent to 415-635
PrefixRate centerCode holder
415-632 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC
415-633 San Francisco:central Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
415-634 Mill Valley ONVOY, LLC - CA
415-636 San Francisco:central Da PACIFIC BELL
415-637 San Francisco:central Da METROPCS, INC.
415-638 San Francisco:central Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA

FAQ

Where is 415-635 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 415-635 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 415-635 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.