Prefix 415-590 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
590
State
California
Time zone
Pacific
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Pooled
Yes (thousands-block pooling)
Assigned
2012-03-22
LATA
722

415-590 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 — 415-590 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 MCIMETRO ACCESS TRANSMISSION SERVICES LLC, operating company number 7229, assigned March 22, 2012. 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 415-590
PrefixRate centerCode holder
415-587 San Francisco:juniper Da PACIFIC BELL
415-588 San Francisco:central Da 33 WIRELESS INC.
415-589 San Francisco:central Da T-MOBILE USA, INC.
415-591 San Francisco:central Da PACIFIC BELL
415-592 San Francisco:montrose-evergreen Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
415-593 San Francisco:central Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC

FAQ

Where is 415-590 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 415-590 numbers?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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 415-590 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.