AA4BK
Active2x2District 4
Competitive callsign — 11 applications filed with the FCC.
License HolderButler, Christine A
License ClassTechnician
Min. Class RequiredGeneral
LocationGillette, WY
Grant DateMay 31, 2023
Expiration DateMay 31, 2033
AA4BK is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Butler, Christine A in Gillette, WY. This callsign has attracted significant interest in the amateur radio community, with 11 vanity applications filed with the FCC. The most recent was submitted by KNOLL, BRIAN F on May 10, 2023. AA4BK has 13 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .- ....- -... -.-
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Alpha Alpha Four Bravo Kilo
Readability: 8/10(High readability)
License History
- Administrative Update AppliedNov 19, 2025
- Administrative Update AppliedApr 23, 2025
- Administrative Update AppliedApr 5, 2024
- Administrative Update AppliedApr 5, 2024
- License IssuedMay 31, 2023
- Vanity Callsign GrantedMay 31, 2023
- License CanceledFeb 19, 2014
- Administrative Update AppliedFeb 18, 2010
- Vanity Callsign GrantedApr 10, 2007
- License IssuedApr 10, 2007
- License CanceledDec 30, 2000
- Administrative Update Applied
Vanity Application Activity
Competing applications filed with the FCC for this callsign.