William K Mast
Active- Service
- Amateur Vanity
- Class
- Technician
- Location
- ALBUQUERQUE, NM
- FRN
- 0024852543
- Granted
- Jul 2, 2025
- Expires
- Sep 15, 2035
FCC Amateur and GMRS license lookup
Search public FCC ULS records by callsign, FRN, name, or location.
K5SQD
- 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.