San Leandro, California Area Code

San Leandro, CA Area Codes are

510 and 341

San Leandro, CA is officially utilizing an area code overlay in which area codes 510 and 341 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to San Leandro, CA area code information read more about area codes 510 and 341 details and California area codes.

San Leandro, CA is located in Alameda County and observes the Pacific Time Zone. View our Times by Area Code tool.

California Area Code Map