Florida · Eastern Time
321 Area Code
Area code 321 is in Florida, serving Florida's Space Coast (Brevard County), plus the Orlando metro as an overlay of 407 and 689. It is in the Eastern Time zone. It shares its territory with overlay codes 407 and 689, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 321 area code?
321 is a Florida area code covering Florida's Space Coast (Brevard County), plus the Orlando metro as an overlay of 407 and 689. In the wider directory it sits in the South region.
Cities in the 321 area code
- Orlando
- Palm Bay
- Melbourne
- Titusville
- Cocoa
- Rockledge
- Merritt Island
- Viera
- West Melbourne
- Cocoa Beach
- Satellite Beach
- Cape Canaveral
- Indian Harbour Beach
- Melbourne Beach
Counties served by 321
Brevard County.
Time zone note: Most of Florida is Eastern; the western Panhandle (around Pensacola) is Central.
321 overlay codes and dialing
The 321 territory is covered by an overlay of 3 area codes: 321, 407, 689. All of them serve the same geographic area, and the original code is 407. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 321 area code
321 went into service on November 1, 1999 as an overlay of 407, relieving number exhaustion in the Orlando area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 321 a scam or spam risk?
321 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 321 number on your screen is no guarantee the caller is in Orlando, FL or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Florida area codes
Explore more
See every code in Florida, compare codes across the South region, or view all Eastern Time codes. You can also browse the 3XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
321 area code FAQ
Where is the 321 area code?
The 321 area code is in Florida, covering Florida's Space Coast (Brevard County), plus the Orlando metro as an overlay of 407 and 689, in the South region.
What cities are in the 321 area code?
Cities in the 321 area code include Orlando, Palm Bay, Melbourne, Titusville, Cocoa, Rockledge, Merritt Island, Viera, West Melbourne and Cocoa Beach.
What time zone is 321 in?
321 is in the Eastern Time zone. Most of Florida is Eastern; the western Panhandle (around Pensacola) is Central.
What is the overlay for the 321 area code?
321 shares its territory with 407 and 689. All 3 codes (321, 407, 689) serve the same area, so 10-digit dialing is required for every call.
When did the 321 area code start?
321 went into service on November 1, 1999 as an overlay of 407.
Do I have to dial 10 digits for 321?
Yes. Because 321 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 321 a toll-free or premium code?
No. 321 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.