Prefix 415-851 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
851
State
California
Time zone
Pacific
Code holder
BANDWIDTH.COM CLEC, LLC - CA
OCN
981E
Pooled
Yes (thousands-block pooling)
Assigned
2014-05-22
LATA
722

415-851 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 — 415-851 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 BANDWIDTH.COM CLEC, LLC - CA, operating company number 981E, assigned May 22, 2014. 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 415-851
PrefixRate centerCode holder
415-848 San Francisco:central Da TELEPORT COMMUNICATIONS AMERICA, LLC - CA
415-849 Corte Madera BANDWIDTH.COM CLEC, LLC - CA
415-850 San Francisco:central Da T-MOBILE USA, INC.
415-852 San Francisco:central Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
415-853 San Francisco:central Da ONVOY, LLC - CA
415-854 San Francisco:central Da BANDWIDTH.COM CLEC, LLC - CA

FAQ

Where is 415-851 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 415-851 numbers?

BANDWIDTH.COM CLEC, 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 415-851 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.