Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD8ATC callsign genealogy
Currently held by Werbiansky, David 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 KD8ATC's current licensee, walking backwards.
- Cass, Darrell RMIgranted 2018-02-12cancelled 2018-09-14
Successor callsigns
Callsigns held now by people who previously held KD8ATC.
- Werbiansky, David AMIgranted 2005-01-21cancelled 2008-02-01
All historical holders
Every license row we've seen with the callsign KD8ATC, oldest first.
- Werbiansky, David A MI2004-12-14 → cancelled 2005-01-21
- Cass, Darrell R MI2018-09-14 active