MARC D HELFMAN
Active- Service
- Amateur
- Class
- Amateur Extra
- Location
- KENWOOD, CA
- FRN
- 0025718115
- Granted
- May 13, 2026
- Expires
- Jul 13, 2036
FCC Amateur and GMRS license lookup
Search public FCC ULS records by callsign, FRN, name, or location.
AI6RD
- Callsign
- Try W1AW, or enter several callsigns separated by commas.
- FRN
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- Advanced
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