Amateur Radio Callsigns in ZIP Code: 21678
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| AA3CJ | HOWLEY, MICHAEL T | WORTON | MD | United States |
| K3DEC | MOLZ, JOSEPH L | WORTON | MD | United States |
| K3TBE | ROBERTS, WILLIAM L | WORTON | MD | United States |
| KE3MC | SINGLETON, CHRISTOPHER J | WORTON | MD | United States |
| N3QA | COURSEY, CALVIN E | Worton | MD | United States |
| W3REX | CONN, REX C | WORTON | MD | United States |
| W3DPW | WINQUIST, DONALD P | WORTON | MD | United States |
| W3EKR | Chiquoine, Walter A | Worton | MD | United States |