AA4BT
Available2x2District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderHOLMES, FREDERICK W
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationOAKLAND, MI
Grant DateSep 27, 2013
Expiration DateSep 27, 2023
Cancellation DateSep 30, 2025
Available for ApplicationsSep 28, 2025
AA4BT is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by HOLMES, FREDERICK W in OAKLAND, MI. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Jones, Carl G on Dec 29, 2025. AA4BT has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .- ....- -... -
CW Weight: 24 units(Light (fast to send))
Voice Phonetics
Alpha Alpha Four Bravo Tango
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 ExpiredSep 30, 2025
- License IssuedSep 27, 2013
- Vanity Callsign GrantedSep 27, 2013
- License ExpiredApr 21, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.