305 Area Code
Miami-Dade County, Florida
Area code 305 is located in Miami-Dade County, Florida. It covers Miami, Hialeah, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 305?
Area code 305 is located in Miami-Dade County, Florida. It covers Miami, Hialeah, and surrounding areas in the Eastern time zone (UTC-5).
Area code 305 is overlaid by area code 786. Both codes serve the same geographic region and require 10-digit dialing for local calls.
Cities Covered by Area Code 305
Area code 305 primarily serves the Miami-Dade County area of Florida. The exact coverage includes Miami, Hialeah, and Miami Beach, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 305 operates in the Eastern Time Zone. When calling 305 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 305
Area code 305 was introduced in 1947 as a geographic area code serving Miami-Dade County, Florida. As demand for phone numbers grew, overlay code 786 was added to the same region, requiring 10-digit dialing for local calls. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.