Prefix 619-394 — San Diego:san Diego Da, CA

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

Area code
619
Prefix (NXX)
394
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2015-04-01
LATA
732

619-394 identifies a block of numbers in San Diego:san Diego Da, CA, within the 619 area code. Every US prefix is tied to exactly one rate center; this one is San Diego:san Diego Da.

The rate center lies in the San Diego-Cula Vista-Carlsbad, CA Metropolitan Statistical Area. The serving LATA is 732. Local time follows the Pacific zone.

Treat the on-screen number as a hint, not evidence — 619-394 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

NANPA's central-office code records list T-MOBILE USA, INC. (OCN 6529) as the code holder, assigned April 1, 2015. Because 619-394 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 619-394
PrefixRate centerCode holder
619-391 San Diego:san Diego Da PEERLESS NETWORK OF CALIFORNIA, LLC - CA
619-392 Chula Vista T-MOBILE USA, INC.
619-393 San Diego:san Diego Da ONVOY, LLC - CA
619-395 Chula Vista NEW CINGULAR WIRELESS PCS, LLC
619-396 El Cajon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
619-397 Chula Vista PACIFIC BELL

FAQ

Where is 619-394 located?

The prefix is assigned to the San Diego:san Diego Da rate center in CA, area code 619. It is part of the San Diego-Cula Vista-Carlsbad, CA Metropolitan Statistical Area.

Which company owns 619-394 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 619-394 safe to answer?

The prefix itself says nothing about the caller. Legitimate San Diego:san Diego Da businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.