AD4SB
Active2x2District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderBorden, Michael S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationDecatur, AL
Grant DateAug 21, 2021
Expiration DateNov 18, 2031
AD4SB is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Borden, Michael S in Decatur, AL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Borden, Michael S on Oct 31, 2011. AD4SB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- -.. ....- ... -...
CW Weight: 25 units(Light (fast to send))
Voice Phonetics
Alpha Delta Four Sierra Bravo
Readability: 7.5/10(High readability)
License History
- License RenewedAug 21, 2021
- Administrative Update AppliedJul 12, 2016
- License IssuedNov 18, 2011
- Vanity Callsign GrantedNov 18, 2011
Vanity Application Activity
Competing applications filed with the FCC for this callsign.