The area code 321 is located in Florida and covers Orlando, Alafaya, Pine Hills, Kissimmee, and Sanford. It serves Brevard County, Florida, Space Coast Region, and Seminole County, Florida. The area code has been in use since November 1, 1999, and was assigned to Florida. When it was activated in 2000, area code 321 was used as an overlay for most of area code 407 in the Orlando area, except for the small portion of Volusia County that includes Deltona which was in 407 at the time (it is now in 386). However, no 321 numbers were issued in the 407 area from 2003 until 2015, when 321 numbers were issued for cell phones in Osceola, Orange, and Seminole counties due to high demand. With the 407/689 overlay, 321 remains frozen in the Orlando area with new 321 numbers again being assigned only in Brevard County. The remaining parts of Orlando are covered by area codes 321 and 407. Area code 321 is also the primary area code for all of Brevard County.