San Diego, CA is currently using one area code which is area code 619. Area code 619 was created from a split of area code 714 and put into service on January 1, 1982.
In addition to San Diego, CA area code 619 serves the larger communities of Alpine, Chula Vista, Coronado, El Cajon, Imperial Beach, La Mesa, La Presa, Lemon Grove, National City, Rancho San Diego, San Diego, Santee, Spring Valley, and much of the southern portions of San Diego and surrounding suburbs.
San Diego, CA is located in San Diego County and observes the Pacific Time Zone. View our Times by Area Code tool.