KP4TB
Available2x2District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderFONSECA, RENE
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationFAJARDO, PR
Grant DateMar 11, 2008
Expiration DateJun 8, 2018
Cancellation DateDec 8, 2009
Available for ApplicationsDec 9, 2011
KP4TB is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by FONSECA, RENE in FAJARDO, 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 Butler, John C on Sep 24, 2025. KP4TB has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .--. ....- - -...
CW Weight: 31 units(Moderate)
Voice Phonetics
Kilo Papa Four Tango Bravo
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License CanceledDec 8, 2009
- License ModifiedFeb 23, 2009
- License RenewedMar 11, 2008
Vanity Application Activity
Competing applications filed with the FCC for this callsign.