415 Area Code
San Francisco, California
Area code 415 is located in San Francisco, California. It covers San Francisco, Sausalito, and surrounding areas in the Pacific time zone (UTC-8). Administered by NANPA.
Where is area code 415?
Area code 415 is located in San Francisco, California. It covers San Francisco, Sausalito, and surrounding areas in the Pacific time zone (UTC-8).
Area code 415 is overlaid by area code 628. Both codes serve the same geographic region and require 10-digit dialing for local calls.
Cities Covered by Area Code 415
Area code 415 primarily serves the San Francisco area of California. The exact coverage includes San Francisco, Sausalito, and San Rafael (part), along with surrounding communities and suburbs.
Time Zone
Pacific Time — UTC-8
Area code 415 operates in the Pacific Time Zone. When calling 415 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 415
Area code 415 was introduced in 1947 as a geographic area code serving San Francisco, California. As demand for phone numbers grew, overlay code 628 was added to the same region, requiring 10-digit dialing for local calls. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.