Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE6XO callsign genealogy
Currently held by Breidenthal, William 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 KE6XO's current licensee, walking backwards.
- Breidenthal, William HCAgranted 2011-09-16cancelled 2013-05-10
Successor callsigns
Callsigns held now by people who previously held KE6XO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE6XO, oldest first.
- Donnelly, Charles E WY1997-02-25 → cancelled 2009-02-26
- Breidenthal, William H CO2023-04-25 active