Amateur Radio Callsigns in ZIP Code: 21838
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| N3BZC | JUSTICE, HILLARY J | Marion Station | MD | United States |
| N3KBV | MASSEY, DEAN B | Marion Station | MD | United States |
| N3VBK | FULCHER SR, WILLIAM J | MARION STATION | MD | United States |
| N3XQY | HALDEMAN, BLAIR R | MARION | MD | United States |
| N3ZWG | HANDY JR, WILLIAM T | MARION STATION | MD | United States |
| W3KSV | HALDEMAN, ROBERT W | MARION | MD | United States |
| WX3B | NITZBERG, JAMES A | Marion Station | MD | United States |
| WY3P | CARROLL COUNTY CONTESTERS | Marion Station | MD | United States |
| KC3FFK | SMITH, BOBBY G | MARION STATION | MD | United States |