Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD8DX callsign genealogy
Currently held by ROBERTS, RICHARD G
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 AD8DX's current licensee, walking backwards.
- Heiler, James TMIgranted 2015-06-29cancelled 2016-02-12
Successor callsigns
Callsigns held now by people who previously held AD8DX.
- ROBERTS, RICHARD GOHgranted 2012-01-25cancelled 2024-04-11
All historical holders
Every license row we've seen with the callsign AD8DX, oldest first.
- ROBERTS, RICHARD G OH2001-07-31 → cancelled 2002-04-10
- Heiler, James T MI2025-12-10 active