What is what area code is 415?

The area code 415 is a telephone area code in the North American Numbering Plan (NANP) serving San Francisco and its northern suburbs in Marin County. It was one of the original area codes established in 1947 and covers the entire area of the city of San Francisco as well as the neighboring cities of Daly City, Sausalito, San Rafael, and Novato.

The 415 area code is located within the state of California, and is currently the primary area code for the city of San Francisco. However, due to increasing demand for telephone numbers, an additional area code, 628, was introduced as an overlay for the 415 area in 2015 to ensure a continuing supply of phone numbers for the region.

The 415 area code is often associated with the vibrant cultural scene and technological innovations of the San Francisco Bay Area. It is also where many well-known companies in the technology, finance, and entertainment industries are headquartered.