The area code 321 is located in Melbourne, Florida.
Area code 321 serves Melbourne, Florida, and most of Brevard County along Florida’s Atlantic shoreline, a region proudly known as the Space Coast. The code was assigned in 1999 and chosen to echo the rocket launch countdown—3-2-1—heard from nearby Cape Canaveral. Centered on Melbourne and Palm Bay, the area blends beach towns, family neighborhoods, and high-tech employers. It sits east of Orlando with easy access to I‑95 and U.S. 1, making it a key hub for Space Coast living and business.
Major cities and communities covered by area code 321 include:
The 321 area code is home to landmarks like Kennedy Space Center, Cape Canaveral Space Force Station, Patrick Space Force Base, Port Canaveral, the Brevard Zoo, and Florida Institute of Technology. It also overlays parts of the 407 region in the greater Orlando area, so some Orlando phone numbers still use 321 from that earlier overlay. Phones here follow Eastern Time, and 321 numbers are used for both mobile and landline service across the Space Coast. “3, 2, 1… liftoff!” — NASA launch broadcasts at Kennedy Space Center.