Prefix 213-398 — Los Angeles:da 13, CA

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

Area code
213
Prefix (NXX)
398
Rate center
Los Angeles:da 13
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2020-03-27
LATA
730

Numbers in the 213-398 prefix are registered to the Los Angeles:da 13 rate center in CA, inside area code 213. The prefix is the second block of a ten-digit US number (213-398-XXXX) and pins the number to a billing locality.

NANPA's central-office code records list T-MOBILE USA, INC. (OCN 6529) as the code holder, assigned March 27, 2020. Because 213-398 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

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

Neighboring prefixes

Prefixes adjacent to 213-398
PrefixRate centerCode holder
213-395 Los Angeles:da 01 TELEPORT COMMUNICATIONS AMERICA, LLC - CA
213-396 Los Angeles:da 02 SHELCOMM
213-397 Los Angeles:da 09 T-MOBILE USA, INC.
213-399 Los Angeles:da 01 NEW CINGULAR WIRELESS PCS, LLC
213-400 Los Angeles:da 01 NEW CINGULAR WIRELESS PCS, LLC
213-401 Los Angeles:da 10 TELEPORT COMMUNICATIONS AMERICA, LLC - CA

FAQ

Where is 213-398 located?

The prefix is assigned to the Los Angeles:da 13 rate center in CA, area code 213. It is part of the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area.

Which company owns 213-398 numbers?

T-MOBILE USA, INC. 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 213-398 safe to answer?

The prefix itself says nothing about the caller. Legitimate Los Angeles:da 13 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.