321 Area Code is part of 6 counties in the state of Florida. There are around 29 cities and 39 other places such as towns, cdps and villages in the 321 area code. Area code 321 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Florida. Below you will find more info about Code and also zip codes, counties, cities and the post offices that belong to this Area Code.
Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.