K4ISR
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderJONES, HOWARD A
License ClassGeneral
Min. Class RequiredGeneral
LocationSAN DIEGO, CA
Grant DateMar 5, 2025
Expiration DateMar 10, 2035
K4ISR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by JONES, HOWARD A in SAN DIEGO, CA. 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 KAISER JR, MICHAEL J on Feb 19, 2015. K4ISR has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .. ... .-.
CW Weight: 24 units(Light (fast to send))
Voice Phonetics
Kilo Four India Sierra Romeo
Readability: 6.5/10(Good readability)
License History
- License RenewedMar 5, 2025
- License ModifiedMay 18, 2015
- License IssuedMar 10, 2015
- Vanity Callsign GrantedMar 10, 2015
- License ExpiredMar 16, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- KAISER JR, MICHAEL JFiled Feb 19, 2015Not awardedFCC ↗