KP4SLR
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderRIVERA RODRIQUEZ, SERGIO L
License ClassTechnician
Min. Class RequiredTechnician
LocationCAYEY, PR
Grant DateAug 6, 2026
Expiration DateSep 24, 2036
KP4SLR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by RIVERA RODRIQUEZ, SERGIO L in CAYEY, PR. 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 RIVERA RODRIQUEZ, SERGIO L on Sep 6, 2016. KP4SLR has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--. ....- ... .-.. .-.
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Papa Four Sierra Lima Romeo
Readability: 6.5/10(Good readability)
License History
- License RenewedAug 6, 2026
- License IssuedSep 24, 2016
- Vanity Callsign GrantedSep 24, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- RIVERA RODRIQUEZ, SERGIO LFiled Sep 6, 2016Not awardedFCC ↗