Prefix 415-363 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
363
State
California
Time zone
Pacific
Code holder
PEERLESS NETWORK OF CALIFORNIA, LLC - CA
OCN
373F
Pooled
Yes (thousands-block pooling)
Assigned
2009-02-14
LATA
722

415-363 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 — 415-363 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 PEERLESS NETWORK OF CALIFORNIA, LLC - CA (OCN 373F) as the code holder, assigned February 14, 2009. Because 415-363 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 415-363
PrefixRate centerCode holder
415-360 Mill Valley MCIMETRO ACCESS TRANSMISSION SERVICES LLC
415-361 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC
415-362 San Francisco:central Da PACIFIC BELL
415-364 San Francisco:central Da PACIFIC BELL
415-365 San Francisco:central Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
415-366 Belvedere ONVOY, LLC - CA

FAQ

Where is 415-363 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 415-363 numbers?

PEERLESS NETWORK OF CALIFORNIA, 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 415-363 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.