Key Biscayne, Florida Area Code
Key Biscayne, FL is officially utilizing an area code overlay in which area codes 305 and 786 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Key Biscayne, FL area code information read more about area codes 305 and 786 details and Florida area codes.
Key Biscayne, FL is located in Miami-Dade County and observes the Eastern Time Zone. View our Times by Area Code tool.