Prefix 415-728 — San Francisco:central Da, CA

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

Area code
415
Prefix (NXX)
728
State
California
Time zone
Pacific
Code holder
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Pooled
Yes (thousands-block pooling)
Assigned
2005-05-23
LATA
722

A phone number starting 415-728 was issued in the San Francisco:central Da rate center of CA — part of area code 415.

Code-holder of record: NEW CINGULAR WIRELESS PCS, LLC (OCN 6010), assigned May 23, 2005. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 415-728 numbers may be served by different companies.

A scammer can display 415-728 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 415-728
PrefixRate centerCode holder
415-725 San Francisco:montrose-evergreen Da T-MOBILE USA, INC.
415-726 San Rafael T-MOBILE USA, INC.
415-727 Inverness ONVOY, LLC - CA
415-729 Sausalito ONVOY, LLC - CA
415-730 San Francisco:central Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
415-731 San Francisco:montrose-evergreen Da PACIFIC BELL

FAQ

Where is 415-728 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 415-728 numbers?

NEW CINGULAR WIRELESS PCS, 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 415-728 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.