The new area code 645 will be implemented in Miami-Dade County and the Florida Keys starting today.
After 305 and 786, a new Area Code 645 will begin in Miami-Dade County from August 4, 2023. South Floridians will start seeing the “645” area code from August 4, 2023.
According to the Florida Public Service Commission, an all-service area code overlay has been approved for a part of Miami-Dade County and Monroe County. An overlay is to add a new area code within the same existing area code.
This means that new cell phone customers living in Miami, Doral, Florida Keys, Fontainebleau, Hialeah, Homestead, Kendall, and other small communities will be assigned a new number when purchasing new service or a new line.
Initially, in Florida, there was only area code 305 across the entire state. The 786 exchange was added to Miami-Dade’s 305 area code in 1998. For more information about the area code changes, please click on this link-https://www.psc.state.fl.us/area-code-summaries