Mark Ludwikowski
Active- Service
- Amateur
- Class
- General
- Location
- CASTLETON, VA
- FRN
- 0037372133
- Granted
- Nov 26, 2025
- Expires
- Nov 26, 2035
FCC Amateur and GMRS license lookup
Search public FCC ULS records by callsign, FRN, name, or location.
KR4HQQ
- Callsign
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