Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9HAX callsign genealogy
Currently held by BURGDORFF, WAYNE H
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 W9HAX's current licensee, walking backwards.
- Kaun, Travis RWIgranted 2015-07-01cancelled 2015-07-21
Successor callsigns
Callsigns held now by people who previously held W9HAX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9HAX, oldest first.
- BURGDORFF, WAYNE H WI1997-03-24 → cancelled 2009-03-25
- Kaun, Travis WI2015-07-21 active