Amateur Radio Callsigns in ZIP Code: 51040
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| KB0OD | DAVIS, DONNA M | ONAWA | IA | United States |
| N4SYO | WOMACK, EDWARD L | Onawa | IA | United States |
| WB0FTL | Ellis, Leslie R | Onawa | IA | United States |
| N0ZU | Davis, Leonard A | Onawa | IA | United States |
| KC0RIV | Joy, James L | Onawa | IA | United States |
| KC0SAI | Davis, James C | Onawa | IA | United States |
| KD0WXD | Karr III, John W | Onawa | IA | United States |
| N9WHM | LUEY, NATHAN T | Onawa | IA | United States |