KP4RRR
Active2x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderMartinson, Dean
License ClassTechnician
Min. Class RequiredTechnician
LocationEstes Park, CO
Grant DateSep 9, 2023
Expiration DateSep 9, 2033
KP4RRR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Martinson, Dean in Estes Park, CO. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by RUIZ RIVERA, ROBERT on Aug 22, 2023. KP4RRR has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--. ....- .-. .-. .-.
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo Papa Four Romeo Romeo Romeo
Readability: 6/10(Good readability)
License History
- Administrative Update AppliedApr 29, 2025
- Administrative Update AppliedApr 25, 2025
- License ModifiedJul 15, 2024
- License IssuedSep 9, 2023
- Vanity Callsign GrantedSep 9, 2023
Vanity Application Activity
Competing applications filed with the FCC for this callsign.