WB4JKB
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderMAYER SR, JOHN F
License ClassTechnician
Min. Class RequiredTechnician
LocationSAN ANTONIO, TX
Grant DateApr 2, 2013
Expiration DateJun 8, 2023
Cancellation DateJun 10, 2025
Available for ApplicationsJun 9, 2025
WB4JKB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by MAYER SR, JOHN F in SAN ANTONIO, TX. 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 Balassa, Julie K on Nov 22, 2017. WB4JKB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- -... ....- .--- -.- -...
CW Weight: 43 units(Heavy (slower to send))
Voice Phonetics
Whiskey Bravo Four Juliet Kilo Bravo
Readability: 7/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredJun 10, 2025
- License RenewedApr 2, 2013
- Tax ID (TIN) AddedMay 9, 2003
- License RenewedMay 9, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Balassa, Julie KFiled Nov 22, 2017Not awardedFCC ↗