Amateur Radio Callsign: K4OSR
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K4OSR |
|
Roldan, Ernest A
DENVER, CO (United States) |
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| License Status | Active |
|---|---|
| Operator Class | General |
| Name | Roldan, Ernest A |
| Granted | 2020-01-03 |
| Expires | 2030-01-03 |
| Address |