Prefix 619-340 — La Mesa, CA
A phone number starting 619-340 was issued in the La Mesa rate center of CA — part of area code 619.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned September 16, 2016. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 619-340 without ever touching CA. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
La Mesa is part of the San Diego-Cula Vista-Carlsbad, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 732. Numbers here keep Pacific time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 619-337 | La Mesa | PACIFIC BELL |
| 619-338 | San Diego:san Diego Da | PACIFIC BELL |
| 619-339 | San Diego:san Diego Da | NEW CINGULAR WIRELESS PCS, LLC |
| 619-341 | San Diego:san Diego Da | NEW CINGULAR WIRELESS PCS, LLC |
| 619-342 | San Diego:san Diego Da | LEVEL 3 COMMUNICATIONS, LLC - CA |
| 619-343 | San Diego:san Diego Da | METROPCS, INC. |
FAQ
Where is 619-340 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 619-340 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 619-340 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.