What is 415 area code?

The 415 area code is a telephone area code in California that covers the city of San Francisco and parts of Marin County. It was one of the original area codes established in 1947 and has been in use ever since. The 415 area code is one of the most well-known in the state and is associated with the San Francisco Bay Area. The area code is unique in that it is one of the few remaining area codes in California that has not been split or overlaid with a new area code. As a result, the 415 area code has become a symbol of the city of San Francisco and is often used in popular culture to represent the city and its surrounding areas.