Prefix 916-661 — Sacramento:main Da, CA

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

Area code
916
Prefix (NXX)
661
Rate center
Sacramento:main Da
State
California
Time zone
Pacific
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
OCN
7128
Pooled
Yes (thousands-block pooling)
Assigned
2013-10-07
LATA
726

The 916-661 prefix belongs to area code 916 and is anchored to the Sacramento:main Da rate center (CA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

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.

Code-holder of record: MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (OCN 7128), assigned October 7, 2013. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 916-661 numbers may be served by different companies.

Caller ID showing 916-661 is not proof the call came from Sacramento:main Da: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.

Neighboring prefixes

Prefixes adjacent to 916-661
PrefixRate centerCode holder
916-658 Sacramento:main Da PACIFIC BELL
916-659 South Placer CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
916-660 South Placer PACIFIC BELL
916-662 Sacramento:main Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
916-663 South Placer PACIFIC BELL
916-664 Sacramento:north Da T-MOBILE USA, INC.

FAQ

Where is 916-661 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 916-661 numbers?

MCIMETRO ACCESS TRANSMISSION SERVICES 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 916-661 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.