Amateur Radio Callsigns in ZIP Code: 59104
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| N5DKR | MARS, MICHAEL W | Billings | MT | United States |
| KI4HOR | HARPER, JON W | Billings | MT | United States |
| KE7JUX | Lefevre, Douglas J | Billings | MT | United States |
| KF7RBE | Jones, Chris M | Billings | MT | United States |
| KF7RBH | Jones, Jerrold Roy T | Billings | MT | United States |
| KF7UVO | Porta, William J | Billings | MT | United States |
| K7CKN | Voeller, Justin F | Billings | MT | United States |
| KJ7WFY | Kuck, Dannie D | Billings | MT | United States |
| AE7FU | Oglesby, Rachel B | Billings | MT | United States |