K4APF
Available1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderSEVILLA, WILFREDO
License ClassGeneral
Min. Class RequiredGeneral
LocationHUMACAO, PR
Grant DateApr 12, 2014
Expiration DateApr 12, 2024
Cancellation DateApr 14, 2026
Available for ApplicationsApr 13, 2026
K4APF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by SEVILLA, WILFREDO in HUMACAO, PR. 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 Filiberto, Peter J on Sep 10, 2026. K4APF has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .- .--. ..-.
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Alpha Papa Foxtrot
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredApr 14, 2026
- License IssuedApr 12, 2014
- Vanity Callsign GrantedApr 12, 2014
- License ExpiredSep 23, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.