Prefix 213-277 — Los Angeles:da 10, CA

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

Area code
213
Prefix (NXX)
277
Rate center
Los Angeles:da 10
State
California
Time zone
Pacific
Code holder
ONVOY, LLC - CA
OCN
649C
Pooled
Yes (thousands-block pooling)
Assigned
2015-12-01
LATA
730

Numbers in the 213-277 prefix are registered to the Los Angeles:da 10 rate center in CA, inside area code 213. The prefix is the second block of a ten-digit US number (213-277-XXXX) and pins the number to a billing locality.

Code-holder of record: ONVOY, LLC - CA (OCN 649C), assigned December 1, 2015. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 213-277 numbers may be served by different companies.

The rate center lies in the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area. The serving LATA is 730. Local time follows the Pacific zone.

Spoofing means this prefix on your screen doesn't guarantee a Los Angeles:da 10 caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 213-277
PrefixRate centerCode holder
213-274 Los Angeles:da 01 T-MOBILE USA, INC.
213-275 Los Angeles:da 07 ONVOY, LLC - CA
213-276 Los Angeles:da 01 METROPCS NETWORKS, LLC
213-278 Los Angeles:da 01 METROPCS NETWORKS, LLC
213-279 Los Angeles:da 01 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
213-280 Los Angeles:da 01 NEW CINGULAR WIRELESS PCS, LLC

FAQ

Where is 213-277 located?

The prefix is assigned to the Los Angeles:da 10 rate center in CA, area code 213. It is part of the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area.

Which company owns 213-277 numbers?

ONVOY, 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 213-277 safe to answer?

The prefix itself says nothing about the caller. Legitimate Los Angeles:da 10 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.