The 645 area code is a telephone area code serving Miami, Miami-Dade County, and the part of Monroe County in the Florida Keys in Florida. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 645 area code) below and access available caller information such as name, address, and more.
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Phone numbers with the 645 area code prefix originate from southern Florida, encompassing Miami, Miami-Dade County, and the Florida Keys area within Monroe County.
Area code 645 is part of an overlay system that serves the same geographic region as area codes 305 and 786. Area code 305 was the original code for this region. Area code 786 was installed as an overlay on March 1, 1998, and area code 645 was activated on August 4, 2023, before the anticipated exhaustion of central office codes in 305 and 786. Within this overlay system, ten-digit dialing is required for calls.
Area code 645 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 645 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Florida geographic region, and local calling area associated with the phone number.
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