KM4ATT
Available2x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderLatham, Violetta K
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationGreencastle, PA
Grant DateApr 30, 2014
Expiration DateApr 30, 2024
Cancellation DateJan 7, 2020
Available for ApplicationsJan 8, 2022
KM4ATT is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Latham, Violetta K in Greencastle, PA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by De La Rosa, Matthew on Nov 28, 2025. KM4ATT has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -- ....- .- - -
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Mike Four Alpha Tango Tango
Readability: 8/10(High readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledJan 7, 2020
- Administrative Update AppliedAug 14, 2017
- Administrative Update AppliedJul 13, 2016
- License ModifiedJun 16, 2015
- License ModifiedJun 19, 2014
- System-Generated GrantApr 30, 2014
- License IssuedApr 30, 2014
Vanity Application Activity
Competing applications filed with the FCC for this callsign.