K4OPG
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderPRESTON JR, DAVID M
License ClassGeneral
Min. Class RequiredGeneral
LocationLOUISVILLE, KY
Grant DateJan 30, 2026
Expiration DateMar 29, 2036
K4OPG is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by PRESTON JR, DAVID M in LOUISVILLE, KY. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Preston, David M on Mar 16, 2016. K4OPG has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --- .--. --.
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Four Oscar Papa Golf
Readability: 8.5/10(High readability)
License History
- Administrative Update AppliedFeb 2, 2026
- License RenewedJan 30, 2026
- Administrative Update AppliedMar 11, 2025
- License IssuedMar 29, 2016
- Vanity Callsign GrantedMar 29, 2016
- License ExpiredMay 16, 2009
Vanity Application Activity
Competing applications filed with the FCC for this callsign.