K4FOG
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderTUISKULA, WARREN J
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationFITCHBURG, MA
Grant DateAug 11, 2026
Expiration DateOct 18, 2036
K4FOG is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by TUISKULA, WARREN J in FITCHBURG, MA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by SMITH, MARC T on Jun 14, 2022. K4FOG has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..-. --- --.
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Four Foxtrot Oscar Golf
Readability: 8.5/10(High readability)
License History
- License RenewedAug 11, 2026
- Administrative Update AppliedDec 21, 2017
- License IssuedOct 18, 2016
- Vanity Callsign GrantedOct 18, 2016
- License ExpiredSep 29, 2016
- License RenewedJul 2, 2004
- Tax ID (TIN) AddedJul 2, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.