Amateur Radio Callsigns in ZIP Code: 21028
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| KD3W | HUGHES, JOHN M | CHURCHVILLE | MD | United States |
| N3RCO | LUFBURROW, ANDREW A | Churchville | MD | United States |
| N4LHU | GRIMM, ERNEST R | CHURCHVILLE | MD | United States |
| W3DRG | PETERSON, DAVID N | CHURCHVILLE | MD | United States |
| KB3JFB | KAFER, CHARLES W | CHURCHVILLE | MD | United States |
| KC3GTI | LAZZARO, MATTHEW T | CHURCHVILLE | MD | United States |
| K3XOR | LAZZARO, MARIANNE | CHURCHVILLE | MD | United States |
| KC3MTD | Higgins, Michael P | Churchville | MD | United States |