Prefix 213-457 — Los Angeles:da 01, CA

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

Area code
213
Prefix (NXX)
457
Rate center
Los Angeles:da 01
State
California
Time zone
Pacific
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
OCN
7240
Pooled
Yes (thousands-block pooling)
Assigned
2001-05-10
LATA
730

Numbers in the 213-457 prefix are registered to the Los Angeles:da 01 rate center in CA, inside area code 213. The prefix is the second block of a ten-digit US number (213-457-XXXX) and pins the number to a billing locality.

The assigned code holder is MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA, operating company number 7240, assigned May 10, 2001. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

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 01 caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 213-457
PrefixRate centerCode holder
213-454 Los Angeles:da 01 UTILITY TELECOM GROUP, LLC - CA
213-455 Los Angeles:da 01 LEVEL 3 COMMUNICATIONS, LLC - CA
213-456 Los Angeles:da 02 PACIFIC BELL
213-458 Los Angeles:da 01 NEW CINGULAR WIRELESS PCS, LLC
213-459 Los Angeles:da 01 T-MOBILE USA, INC.
213-460 Los Angeles:da 06 ONVOY, LLC - CA

FAQ

Where is 213-457 located?

The prefix is assigned to the Los Angeles:da 01 rate center in CA, area code 213. It is part of the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area.

Which company owns 213-457 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 213-457 safe to answer?

The prefix itself says nothing about the caller. Legitimate Los Angeles:da 01 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.