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Area code 321

Area code 321 Cocoa, Florida

Area code 321 is in Florida, with numbers assigned in Cocoa, Melbourne, Orlando and 13 more places. It’s 12:10 AM there now.

State
Florida23 area codes in Florida
Time zone
Eastern12:10 AM there now
Exchanges
50216 places
Overlay
NoneThe only code for its area
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Where area code 321 is

Numbers in 321 are assigned to 16 places in 5 counties: Brevard County, Orange County, Seminole County, Osceola County and Lake County.

Cocoa has the most, 33% of the exchanges; the rest are spread across 15 other places.

  • Cocoa164
  • Melbourne85
  • Orlando71
  • Titusville35
  • Cocoa Beach26
  • Winter Park25
  • Sanford14
  • Kissimmee13
  • Oviedo5
  • Apopka4
  • St. Cloud4
  • Geneva3
  • Montverde2
  • Celebration2
  • Winter Garden1
  • Lake Buena Vista1

Phone companies in 321

502 blocks of numbers in 321 are held by 34 phone companies. The most belong to T-Mobile (98), AT&T (70) and AT&T Mobility (53).

A large share, about 48%, belongs to competitive and internet phone carriers; wireless networks hold 35% and local phone and cable companies 17%.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

321 went into service in 1999, added to the area of 407.

100 new exchanges were assigned since 2021, the latest in October 2026.

Calling 321

It’s 12:10 AM Eastern time in 321 right now.

From elsewhere in the U.S., dial 1, 321 and the 7-digit number.

Nearby area codes

Florida has 23 area codes: 239, 305, 321, 324, 352, 386, 407, 448, 561, 645, 656, 689, 727, 728, 754, 772, 786, 813, 850, 863, 904, 941 and 954.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 321 area code

Map of the 321 area code around Cocoa, Melbourne and Orlando, Florida.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 321

Where is area code 321?

In Florida, covering Cocoa, Melbourne and Orlando and other places across 5 counties.

What time zone is 321 in?

Eastern time. It was 12:10 AM there when this page loaded.

Is 321 an overlay?

No. 321 is the only area code for its area right now.

Which phone companies have 321 numbers?

34 companies hold blocks; the most belong to T-Mobile, AT&T and AT&T Mobility. About 35% of blocks are wireless.

Is 321 running out of numbers?

Not on record. 100 new exchanges have been assigned since 2021.