KR1F
Active2x1District 1
Competitive callsign — 7 applications filed with the FCC.
License HolderWillis, Grant R
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationDuxbury, MA
Grant DateMay 31, 2025
Expiration DateMay 31, 2035
KR1F is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Willis, Grant R in Duxbury, MA. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Vazquez, Alejandro E on May 28, 2025. KR1F has 10 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. .---- ..-.
CW Weight: 31 units(Moderate)
Voice Phonetics
Kilo Romeo One Foxtrot
Readability: 8/10(High readability)
License History
- Vanity Callsign GrantedMay 31, 2025
- License IssuedMay 31, 2025
- License ExpiredMay 13, 2025
- Administrative Update AppliedApr 17, 2015
- License RenewedApr 12, 2013
- Administrative Update AppliedJul 6, 2010
- Administrative Update AppliedSep 2, 2008
- Administrative Update AppliedMay 21, 2003
- Tax ID (TIN) AddedFeb 18, 2003
- License RenewedFeb 18, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.