Prefix 619-509 — El Cajon, CA

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

Area code
619
Prefix (NXX)
509
Rate center
El Cajon
State
California
Time zone
Pacific
Code holder
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Pooled
Yes (thousands-block pooling)
Assigned
2020-02-10
LATA
732

619-509 identifies a block of numbers in El Cajon, CA, within the 619 area code. Every US prefix is tied to exactly one rate center; this one is El Cajon.

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 — 619-509 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 NEW CINGULAR WIRELESS PCS, LLC (OCN 6010) as the code holder, assigned February 10, 2020. Because 619-509 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 619-509
PrefixRate centerCode holder
619-506 Chula Vista AMERICAN MESSAGING SERVICES, LLC
619-507 San Diego:san Diego Da CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
619-508 San Diego:san Diego Da NEW CINGULAR WIRELESS PCS, LLC
619-510 San Diego:san Diego Da COMCAST PHONE OF CALIFORNIA, LLC
619-512 National City MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA
619-513 Chula Vista T-MOBILE USA, INC.

FAQ

Where is 619-509 located?

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

Which company owns 619-509 numbers?

NEW CINGULAR WIRELESS PCS, 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 619-509 safe to answer?

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