W1OFO
Active1x3District 1
Competitive callsign — 1 application filed with the FCC.
License HolderGrosse, John K
License ClassGeneral
Min. Class RequiredGeneral
LocationNewbury Park, CA
Grant DateMar 17, 2026
Expiration DateMar 17, 2036
W1OFO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Grosse, John K in Newbury Park, CA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Fukushima, Kazunori on Feb 25, 2026. W1OFO has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- .---- --- ..-. ---
CW Weight: 44 units(Heavy (slower to send))
Voice Phonetics
Whiskey One Oscar Foxtrot Oscar
Readability: 8/10(High readability)
License History
- License IssuedMar 17, 2026
- Vanity Callsign GrantedMar 17, 2026
- License ExpiredSep 1, 2016
- License RenewedJun 30, 2004
- Administrative Update AppliedJun 5, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Fukushima, KazunoriFiled Feb 25, 2026Not awardedFCC ↗