| Area Code | 321 |
| State | Florida |
| Current Time in Area Code 321 | 321> EDT |
| Timezone | Eastern Daylight Time |
| Regional Market Area | Cocoa-Daytona-Melbourne Area Metro Orlando |
| Metro Area(s) | Orlando-Kissimmee-Sanford, FL Palm Bay-Melbourne-Titusville, FL |
| Population (2020) | 2896032 |
| Adjacent Area Codes | 352,386,407,689,772,863 |
| Overlay Area Codes | 407,689 |
| Brevard County |
| Orange County |
| Osceola County |
| Seminole County |