Prefix 415-610 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
610
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2013-09-26
LATA
722

A phone number starting 415-610 was issued in the San Francisco:central Da rate center of CA — part of area code 415.

The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned September 26, 2013. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

A scammer can display 415-610 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 415-610
PrefixRate centerCode holder
415-607 San Francisco:central Da SPOK, INC.
415-608 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC
415-609 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC
415-612 Ignacio T-MOBILE USA, INC.
415-613 San Francisco:central Da NEW CINGULAR WIRELESS PCS, LLC
415-614 San Francisco:central Da PACIFIC BELL

FAQ

Where is 415-610 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 415-610 numbers?

T-MOBILE USA, 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 415-610 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.