Amateur Radio Callsign: KM4GSL
|   | KM4GSL | 
| CHANG, JAMES W Columbia, MD (United States) | |
| License Status | Active | 
|---|---|
| Operator Class | Amateur Extra | 
| Name | CHANG, JAMES W | 
| Granted | 2024-10-16 | 
| Expires | 2034-12-23 | 
| Address | 
 
                 
                