AA0A
Active2x1District 0
Competitive callsign — 28 applications filed with the FCC.
License HolderRosebrook, John
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationSioux Falls, SD
Grant DateMay 19, 2020
Expiration DateMay 19, 2030
AA0A is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Rosebrook, John in Sioux Falls, SD. This callsign has attracted significant interest in the amateur radio community, with 28 vanity applications filed with the FCC. The most recent was submitted by Gesker, Dennis R on May 8, 2025. AA0A has 13 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .- ----- .-
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Alpha Alpha Zero Alpha
Readability: 8/10(High readability)
License History
- Administrative Update AppliedMay 18, 2021
- Administrative Update AppliedDec 29, 2020
- Administrative Update AppliedMay 27, 2020
- License IssuedMay 19, 2020
- Vanity Callsign GrantedMay 19, 2020
- Internal Correction AppliedMar 31, 2020
- Internal Correction AppliedMar 31, 2020
- Authorization PrintedOct 4, 2018
- Internal Duplicate RequestedOct 3, 2018
- Internal Correction AppliedOct 3, 2018
- License RenewedJul 21, 2017
Vanity Application Activity
Competing applications filed with the FCC for this callsign.