Prefix 916-504 — Sacramento:main Da, CA

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

Area code
916
Prefix (NXX)
504
Rate center
Sacramento:main Da
State
California
Time zone
Pacific
Code holder
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
OCN
671J
Pooled
Yes (thousands-block pooling)
Assigned
2007-09-18
LATA
726

A phone number starting 916-504 was issued in the Sacramento:main Da rate center of CA — part of area code 916.

The assigned code holder is U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS, operating company number 671J, assigned September 18, 2007. 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 916-504 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.

Sacramento:main Da is part of the Sacramento--Roseville--Folsom, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 726. Numbers here keep Pacific time.

Neighboring prefixes

Prefixes adjacent to 916-504
PrefixRate centerCode holder
916-501 Sacramento:main Da METROPCS, INC.
916-502 Sacramento:main Da NEW CINGULAR WIRELESS PCS, LLC
916-503 Sacramento:main Da TELEPORT COMMUNICATIONS AMERICA, LLC - CA
916-505 Sacramento:main Da NEW CINGULAR WIRELESS PCS, LLC
916-506 Sacramento:main Da SPOK, INC.
916-507 Sacramento:north Da T-MOBILE USA, INC.

FAQ

Where is 916-504 located?

The prefix is assigned to the Sacramento:main Da rate center in CA, area code 916. It is part of the Sacramento--Roseville--Folsom, CA Metropolitan Statistical Area.

Which company owns 916-504 numbers?

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 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 916-504 safe to answer?

The prefix itself says nothing about the caller. Legitimate Sacramento:main Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.