What is 817 area code?

The 817 area code is located in the state of Texas, primarily serving the city of Fort Worth and surrounding areas in Tarrant County. It was one of the original area codes established in Texas in 1947. The 817 area code is one of the three area codes serving the Dallas-Fort Worth metroplex, along with area codes 214 and 972. In 2000, the area code was split to create the 682 overlay area code, which now serves the same geographic area as 817. The 817 area code covers approximately 3,034 square miles and has a population of over 2.3 million people.