858 Area Code: San Diego's Biotech and Research Corridor

858 split from 619 in 1999 to serve the rapidly growing northern communities of San Diego County.

History & Coverage

858 covers La Jolla, Del Mar, Sorrento Valley, and Rancho Bernardo — an area that transformed from coastal suburbs into one of the country's premier biotech and research corridors.

Why Businesses Choose 858

• Biotech and life sciences density: Torrey Pines hosts Salk Institute, Scripps Research, and dozens of biotech firms
• University research prestige: UC San Diego anchors a deep pipeline of research talent and startup spinoffs
• Tech and telecom presence: Qualcomm's headquarters and a strong wireless tech sector call the 858 home

Key Industries & Neighborhoods

La Jolla and Torrey Pines anchor biotech and academic research, while Sorrento Valley supports telecom and software companies.

Fun Facts

• The Torrey Pines cluster is considered one of the top three biotech hubs in the United States
• Qualcomm, headquartered in the 858, pioneered much of modern mobile wireless technology

Conclusion

For biotech, research, and telecom businesses, 858 offers direct association with one of America's leading innovation corridors.