Amateur Radio Callsigns in ZIP Code: 21562
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| N3BZH | STRAND, JEFFREY L | WESTERNPORT | MD | United States |
| N3SQI | GREEN, DARREN | WESTERNPORT | MD | United States |
| N7NMS | Liller, Michael L | Westernport | MD | United States |
| N3RTZ | MERTZ, JAMES E | WESTERNPORT | MD | United States |
| KB3TQL | ACKERMAN, MATTHEW W | Westernport | MD | United States |
| KC3IPI | Strand, Kathleen M | WESTERNPORT | MD | United States |
| KC3PDM | Shapiro, Heather R | Westernport | MD | United States |