Prefix 619-439 — La Mesa, CA
619-439 identifies a block of numbers in La Mesa, CA, within the 619 area code. Every US prefix is tied to exactly one rate center; this one is La Mesa.
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 — 619-439 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.
Code-holder of record: COMCAST PHONE OF CALIFORNIA, LLC (OCN 394L), assigned October 9, 2017. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 619-439 numbers may be served by different companies.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 619-436 | San Diego:san Diego Da | T-MOBILE USA, INC. |
| 619-437 | Coronado | PACIFIC BELL |
| 619-438 | El Cajon | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
| 619-440 | El Cajon | PACIFIC BELL |
| 619-441 | El Cajon | PACIFIC BELL |
| 619-442 | El Cajon | PACIFIC BELL |
FAQ
Where is 619-439 located?
The prefix is assigned to the La Mesa rate center in CA, area code 619. It is part of the San Diego-Cula Vista-Carlsbad, CA Metropolitan Statistical Area.
Which company owns 619-439 numbers?
COMCAST PHONE OF CALIFORNIA, LLC 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 619-439 safe to answer?
The prefix itself says nothing about the caller. Legitimate La Mesa businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.