Douglas A Koehler
Active- Service
- Amateur
- Class
- General
- Location
- APPLETON, WI
- FRN
- 0014156921
- Granted
- Aug 7, 2025
- Expires
- Oct 24, 2035
FCC Amateur and GMRS license lookup
Search public FCC ULS records by callsign, FRN, name, or location.
KI4MFL
- Callsign
- Try W1AW, or enter several callsigns separated by commas.
- FRN
- Find licenses linked to a 10-digit FCC Registration Number.
- Advanced
- Combine a name, location, service, or license dates.