Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9X callsign genealogy
Currently held by BLACKWELL, DEREK 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 AD9X's current licensee, walking backwards.
- BLACKWELL, DEREK HUTgranted 2017-06-23cancelled 2024-08-09
Successor callsigns
Callsigns held now by people who previously held AD9X.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD9X, oldest first.
- LACKORE, JAMES R WI2012-05-02 → cancelled 2024-07-23
- BLACKWELL, DEREK H UT2024-08-09 active