Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF0ADX callsign genealogy
Currently held by Shearer, Brian 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 KF0ADX's current licensee, walking backwards.
- Hopler, DouglasMOgranted 2024-05-17cancelled 2024-06-07
Successor callsigns
Callsigns held now by people who previously held KF0ADX.
- Shearer, Brian HMOgranted 2020-11-06
All historical holders
Every license row we've seen with the callsign KF0ADX, oldest first.
- Shearer, Brian H MO2014-10-22 → cancelled 2020-11-06
- Hopler, Douglas MO2024-06-07 active