619 Area Code: San Diego, CA

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.

What area does 619 cover?

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.

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.

619 area code time zone

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).

History of the 619 area code

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.

Why the 619 region matters for business

San Diego has one of the most dynamic economies on the West Coast, with major strengths in defense, biotech, tourism, and technology:

Military & Defense

• Naval Base San Diego — largest naval base on West Coast
• Marine Corps Base Camp Pendleton
• Major defense contractors (General Atomics, Northrop Grumman)
• SPAWAR / NAVWAR systems command

Biotech & Life Sciences

• One of the largest biotech clusters in the world
• Scripps Research, Salk Institute
• Illumina, Dexcom headquarters
• UC San Diego research ecosystem

Technology

• Qualcomm headquarters
• Growing software and SaaS sector
• Cybersecurity companies
• Startup ecosystem

Tourism & Hospitality

• San Diego Zoo and Safari Park
• SeaWorld San Diego
• Convention center and cruise port
• Beach communities

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.

Get a 619 phone number

Telnyx offers local phone numbers in the 619 area code. You get:

• Instant provisioning — activate numbers in minutes, not days
• Flexible pricing — pay only for what you use
• Voice, SMS, and MMS — full communication capabilities
• API access — programmatic number management
• Number portability — bring your existing San Diego numbers to Telnyx

Browse available 619 numbers or contact sales to discuss your needs.

Related area codes

Frequently asked questions

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).