Area code 321: where it is and who calls from it
Area code 321 is in Florida.
Florida (Orlando, Cocoa, Melbourne, Rockledge, Titusville, St. Cloud, and east-central Florida)
| Where | Florida |
|---|---|
| Time zone | Eastern Time ยท local time |
| In service since | 1999 |
| Overlay | No |
| Prefixes assigned | 501 of 792 possible (63%) |
Where 321 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 321, with how many prefixes each has.
Who holds 321 numbers
- Mobile carrier 38%
- Local phone company 15%
- Internet / business phone carrier 43%
- Paging service 1%
- Phone company 3%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| T-Mobile (including Sprint) | Mobile carrier | 72 | 14% |
| AT&T (local phone) | Local phone company | 71 | 14% |
| AT&T Mobility | Mobile carrier | 52 | 10% |
| Windstream (PAETEC) | Internet / business phone carrier | 46 | 9% |
| Onvoy | Internet / business phone carrier | 45 | 9% |
| Level 3 (Lumen) | Internet / business phone carrier | 43 | 9% |
| MetroPCS (T-Mobile) | Mobile carrier | 38 | 8% |
| Verizon Wireless | Mobile carrier | 26 | 5% |
| Bandwidth | Internet / business phone carrier | 16 | 3% |
| Fractel | Internet / business phone carrier | 15 | 3% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number.
States served: Florida.
Other area codes in Florida
239 305 324 352 386 407 448 561 645 656 689 727 728 754 772 786 813 850 863 904 941 954
Got a call from 321?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 321 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.