KO4WDF
Cancelled2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderTAYLOR, ROBERT L
License ClassTechnician
Min. Class RequiredTechnician
LocationThornton, CO
Grant DateJan 24, 2022
Cancellation DateMar 20, 2026
Available for ApplicationsMar 21, 2028
KO4WDF is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by TAYLOR, ROBERT L in Thornton, CO. 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 McRorie, Adam C on Oct 22, 2020. KO4WDF has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --- ....- .-- -.. ..-.
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Oscar Four Whiskey Delta Foxtrot
Readability: 7.5/10(High readability)
Available Mar 21, 2028 (619 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledMar 20, 2026
- Administrative Update AppliedFeb 26, 2026
- Administrative Update AppliedJan 26, 2022
- System-Generated GrantJan 24, 2022
- License IssuedJan 24, 2022
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- McRorie, Adam CFiled Oct 22, 2020Not awardedFCC ↗