Prefix 619-484 — Chula Vista, CA

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

Area code
619
Prefix (NXX)
484
Rate center
Chula Vista
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2015-07-23
LATA
732

619-484 identifies a block of numbers in Chula Vista, CA, within the 619 area code. Every US prefix is tied to exactly one rate center; this one is Chula Vista.

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 — 619-484 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 July 23, 2015. Because 619-484 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 619-484
PrefixRate centerCode holder
619-481 San Diego:san Diego Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
619-482 Chula Vista PACIFIC BELL
619-483 Chula Vista BANDWIDTH.COM CLEC, LLC - CA
619-485 Harbison-alpine BANDWIDTH.COM CLEC, LLC - CA
619-486 El Cajon LEVEL 3 COMMUNICATIONS, LLC - CA
619-487 San Diego:san Diego Da COMCAST PHONE OF CALIFORNIA, LLC

FAQ

Where is 619-484 located?

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

Which company owns 619-484 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 619-484 safe to answer?

The prefix itself says nothing about the caller. Legitimate Chula Vista businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.