What is 657 area code?

The 657 area code is a California telephone area code that was introduced on July 21, 2008. It is an overlay for the 714 area code, serving the same geographic area. This area encompasses much of Orange County, including cities like Anaheim, Santa Ana, and Irvine. As an overlay code, 657 does not have its own distinct geographic boundaries; instead, it's used to provide additional phone numbers within the existing 714 area. The introduction of 657 was necessary due to the increasing demand for telephone numbers in the region.