KD4MLS
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderCALDWELL, LEVI F
License ClassTechnician
Min. Class RequiredTechnician
LocationCHARLOTTE, NC
Grant DateJul 6, 2012
Expiration DateApr 7, 2022
Cancellation DateApr 9, 2024
Available for ApplicationsApr 8, 2024
KD4MLS is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by CALDWELL, LEVI F in CHARLOTTE, NC. 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 Shea, Matthew L on Jul 27, 2026. KD4MLS has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.. ....- -- .-.. ...
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo Delta Four Mike Lima Sierra
Readability: 7.5/10(High readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredApr 9, 2024
- License RenewedJul 6, 2012
- Tax ID (TIN) AddedJan 9, 2002
- License RenewedJan 9, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Shea, Matthew LFiled Jul 27, 2026Not awardedFCC ↗