K4ISP
Available1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderKERFOOT, JONATHAN L
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationBIXBY, OK
Grant DateApr 19, 2017
Expiration DateMay 11, 2027
Cancellation DateMar 19, 2024
Available for ApplicationsMar 20, 2026
K4ISP is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by KERFOOT, JONATHAN L in BIXBY, OK. 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 KERFOOT, JONATHAN L on Apr 23, 2007. K4ISP has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .. ... .--.
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Kilo Four India Sierra Papa
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledMar 19, 2024
- License RenewedApr 19, 2017
- Administrative Update AppliedDec 19, 2009
- License IssuedMay 11, 2007
- Vanity Callsign GrantedMay 11, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.