KK4MDM
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderPorter, Caleb B
License ClassTechnician
Min. Class RequiredTechnician
LocationMelbourne, FL
Grant DateOct 18, 2012
Expiration DateOct 18, 2022
Cancellation DateNov 21, 2024
Available for ApplicationsOct 19, 2024
KK4MDM is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Porter, Caleb B in Melbourne, FL. 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 Martens, Mark D on Jun 2, 2025. KK4MDM has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.- ....- -- -.. --
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Kilo Four Mike Delta Mike
Readability: 8.5/10(High readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredNov 21, 2024
- System-Generated GrantOct 18, 2012
- License IssuedOct 18, 2012
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Martens, Mark DFiled Jun 2, 2025Not awardedFCC ↗