Area codes 619 and 858 cover San Diego County, including San Diego, Chula Vista, La Mesa, and surrounding communities. Learn about coverage, time zone, and how to get a local San Diego number.
Area code 619 serves San Diego County in Southern California, sharing its coverage area with overlay code 858. Together, these area codes cover the entire San Diego metropolitan area. If you need a local presence in San Diego, you can get a 619 phone number through Telnyx.
Area codes 619 and 858 now serve the same geographic region after a boundary elimination in 2018. Originally, 619 covered southern San Diego while 858 covered northern areas, but today both codes serve all of San Diego County.
| City | Population | Notes |
|---|
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| San Diego | ~1,400,000 | 8th largest US city |
| Chula Vista | ~275,000 | South Bay, near border |
| Oceanside | ~175,000 | North County coastal |
| Escondido | ~150,000 | North County inland |
| Carlsbad | ~115,000 | North coastal, tech hub |
| El Cajon | ~107,000 | East County |
| Vista | ~100,000 | North County |
| San Marcos | ~97,000 | North County |
| Encinitas | ~63,000 | Coastal community |
| La Mesa | ~60,000 | East of downtown |
The region also includes Coronado, Del Mar, Poway, Solana Beach, Imperial Beach, National City, Lemon Grove, and Santee. For complete coverage details, see the NANPA area code map.
Area code 619 is in the Pacific Time Zone (PT). During standard time, this is UTC-8 (PST). During daylight saving time, it shifts to UTC-7 (PDT).
The 619 area code was created in 1982 when it split from the 714 area code (which now serves Orange County). Originally, 619 covered all of San Diego County and Imperial County.
As the population grew, 858 split off in 1999 to serve northern San Diego. In 2018, a boundary elimination overlay merged the two codes — 619 and 858 now serve the exact same geographic area with no boundaries between them. New phone lines may be assigned either area code.
10-digit dialing is required for all local calls. For regulatory details, visit the California Public Utilities Commission.
San Diego has one of the most dynamic economies on the West Coast, with major strengths in defense, biotech, tourism, and technology:
Military & Defense
Biotech & Life Sciences
Technology
Tourism & Hospitality
A local 619 or 858 number helps businesses build trust with customers in this region. Calls from local area codes have higher answer rates than unfamiliar or toll-free numbers.
Telnyx offers local phone numbers in the 619 area code. You get:
Browse available 619 numbers or contact sales to discuss your needs.
| Area Code | Region | Major City | Relationship to 619 |
|---|---|---|---|
| 858 | San Diego County | San Diego | Overlay (same area since 2018) |
| 760/442 | North San Diego / Imperial | Oceanside | North (split from 619) |
| 714/657 | Orange County | Anaheim | North |
| 951 | Riverside County | Riverside | Northeast |
| 935 | Imperial County | El Centro | East |
What area code is 619? Area code 619 serves San Diego County in Southern California, including the city of San Diego, Chula Vista, and surrounding communities.
What time zone is 619? Pacific Time (PT) — UTC-8 standard, UTC-7 during daylight saving.
Is 619 the same as 858? Yes, since 2018 both area codes serve the same geographic area with no boundaries between them. New numbers may be assigned either code.
Do I need to dial the area code for local calls? Yes. All calls in San Diego County require 10-digit dialing (area code + 7-digit number).
