KP4MC
Active2x2District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderCALDERON MATOS, VICTOR J
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationLOIZA, PR
Grant DateApr 9, 2026
Expiration DateApr 9, 2036
KP4MC is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by CALDERON MATOS, VICTOR J in LOIZA, PR. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by LOPEZ RIVERA, MIGUEL A on Feb 23, 2016. KP4MC has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--. ....- -- -.-.
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Papa Four Mike Charlie
Readability: 8.5/10(High readability)
License History
- License RenewedApr 9, 2026
- Vanity Callsign GrantedMay 6, 2014
- License IssuedMay 6, 2014
- License CanceledOct 7, 2009
- Administrative Update AppliedMay 6, 2009
- License IssuedJan 16, 2004
- Vanity Callsign GrantedJan 16, 2004
- License ExpiredAug 20, 1999
Vanity Application Activity
Competing applications filed with the FCC for this callsign.