KB4DTU
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderLoeffler, Jeffrey D
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationCulpeper, VA
Grant DateApr 1, 2022
Expiration DateApr 1, 2032
KB4DTU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Loeffler, Jeffrey D in Culpeper, VA. 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 Loeffler, Jeffrey D on Mar 14, 2022. KB4DTU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -... ....- -.. - ..-
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Bravo Four Delta Tango Uniform
Readability: 7/10(Good readability)
License History
- License ModifiedDec 8, 2025
- Administrative Update AppliedNov 19, 2024
- License ModifiedApr 7, 2022
- License IssuedApr 1, 2022
- Vanity Callsign GrantedApr 1, 2022
- License ExpiredMar 9, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Loeffler, Jeffrey DFiled Mar 14, 2022Not awardedFCC ↗