Area code 619 serves the inner metropolitan portion of San Diego County, California, including the city of San Diego. Since 2018 it forms an all-services overlay with area code 858.
The essentialsNumbering data · NumberResearch · as of 2026-09-18
Place
San Diego
Type
geographic
Status
in service
In service since
1982
Projected exhaust
2039 Q3
Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.
A · Where it is
Where 619 is
Inner metropolitan San Diego County, California..
Communities served wholly or partly by 619:
San DiegoChula VistaEl CajonLa MesaSanteeCoronadoImperial BeachNational City
Representative list of principal communities, not exhaustive.
B · Relationships
How it relates to other codes
The codes 619 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?
Split from · 1982714Northern Orange County619 was created by a split of area code 714, the first new California area code since 1959.
Spawned · 1997760Palm Springs / Desert & far-north San DiegoOuter northern San Diego County, desert and southeastern California split off from 619 to form 760.
Spawned · 1999858San Diego (northern/coastal)Northwestern San Diego County split off from 619 to form 858; later became an overlay in 2018.
Overlay · 2018858San Diego (northern/coastal)Since June 2018, 619 and 858 form an all-services overlay covering the same inner San Diego County territory.
What's changing. All-services overlay with area code 858 since June 2018; ten-digit dialing is mandatory.
C · History
How 619 got here
1982
Area code 619 created by a split of area code 714, covering most of San Diego County.
Source: Wikipedia
1997
Outer/desert/southeastern areas removed from 619 by the 760 split (619 article dates this March 23, 1997; the 760/442 article gives March 22, 1997).
Source: Wikipedia
1999-06-12
Northwestern San Diego County split off to form area code 858.
Source: Wikipedia
2018-06
619 and 858 converted into an all-services overlay; ten-digit dialing became mandatory.
Source: Wikipedia
D · Capacity
How full it is
Prefixes assigned
799
Prefixes available
1
Thousands-blocks assigned
3,949
Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).
Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.
North American Numbers