Prefix 213-340 — Los Angeles:da 10, CA

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

Area code
213
Prefix (NXX)
340
Rate center
Los Angeles:da 10
State
California
Time zone
Pacific
Code holder
ONVOY, LLC - CA
OCN
649C
Pooled
Yes (thousands-block pooling)
Assigned
2018-01-23
LATA
730

A phone number starting 213-340 was issued in the Los Angeles:da 10 rate center of CA — part of area code 213.

Code-holder of record: ONVOY, LLC - CA (OCN 649C), assigned January 23, 2018. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 213-340 numbers may be served by different companies.

A scammer can display 213-340 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.

Los Angeles:da 10 is part of the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 730. Numbers here keep Pacific time.

Neighboring prefixes

Prefixes adjacent to 213-340
PrefixRate centerCode holder
213-337 Los Angeles:da 01 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
213-338 Los Angeles:da 02 PEERLESS NETWORK OF CALIFORNIA, LLC - CA
213-339 Los Angeles:da 10 PACIFIC BELL
213-341 Los Angeles:da 10 LEVEL 3 COMMUNICATIONS, LLC - CA
213-342 Los Angeles:da 07 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
213-343 Los Angeles:da 01 T-MOBILE USA, INC.

FAQ

Where is 213-340 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 213-340 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 213-340 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.