Prefix 415-718 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
718
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2024-02-14
LATA
722

Numbers in the 415-718 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 (415-718-XXXX) and pins the number to a billing locality.

Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned February 14, 2024. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 415-718 numbers may be served by different companies.

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 415-718
PrefixRate centerCode holder
415-715 San Francisco:juniper Da PACIFIC BELL
415-716 San Francisco:central Da METROPCS, INC.
415-717 San Rafael NEW CINGULAR WIRELESS PCS, LLC
415-719 San Francisco:central Da UTILITY TELECOM GROUP, LLC - CA
415-720 San Rafael CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
415-721 San Rafael PACIFIC BELL

FAQ

Where is 415-718 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 415-718 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 415-718 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.