Prefix 415-589 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
589
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2012-11-23
LATA
722

Numbers in the 415-589 prefix are registered to the San Francisco:central Da rate center in CA, inside area code 415. The prefix is the second block of a ten-digit US number (415-589-XXXX) and pins the number to a billing locality.

NANPA's central-office code records list T-MOBILE USA, INC. (OCN 6529) as the code holder, assigned November 23, 2012. Because 415-589 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

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.

Spoofing means this prefix on your screen doesn't guarantee a San Francisco:central Da caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 415-589
PrefixRate centerCode holder
415-586 San Francisco:juniper Da PACIFIC BELL
415-587 San Francisco:juniper Da PACIFIC BELL
415-588 San Francisco:central Da 33 WIRELESS INC.
415-590 San Francisco:central Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
415-591 San Francisco:central Da PACIFIC BELL
415-592 San Francisco:montrose-evergreen Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC

FAQ

Where is 415-589 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 415-589 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 415-589 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.