what is the area code for san jose ca
408 and 669. San Jose, CA utilizes an area code overlay in which area codes 408 and 669 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary. In addition to San Jose, CA area code information read more about area codes 408 and 669 details and California area codes. San Jose, CA is located in Santa Clara County and observes the Pacific Time Zone. View our Times by Area Code tool.