The area code 858 is located in San Diego, California.
The 858 area code is located in the sunny city of San Diego, California. Known for its beautiful beaches and vibrant culture, San Diego is a popular destination for both residents and tourists alike. The 858 area code covers a wide range of neighborhoods throughout the city, including La Jolla, Del Mar, and Rancho Bernardo. So whether you're a local or planning a visit, make sure to dial the 858 area code to connect with the buzzing energy and irresistible charm of San Diego.