Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0ARA callsign genealogy
Currently held by KRAHENBUHL, MICHAEL A
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KA0ARA's current licensee, walking backwards.
- WRINKLE, JASON MTXgranted 2014-09-05cancelled 2016-11-11
Successor callsigns
Callsigns held now by people who previously held KA0ARA.
- KRAHENBUHL, MICHAEL AMOgranted 2021-10-27
All historical holders
Every license row we've seen with the callsign KA0ARA, oldest first.
- KRAHENBUHL, MICHAEL A MO2006-12-16 → cancelled 2011-11-01
- WRINKLE, JASON M TX2016-11-11 active