Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4AJ callsign genealogy
Currently held by Jeffcoat, Douglas A
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 AD4AJ's current licensee, walking backwards.
- Jeffcoat, Douglas ASCgranted 2024-01-19cancelled 2024-10-11
Successor callsigns
Callsigns held now by people who previously held AD4AJ.
- SNYDER II, WM TNCgranted 2020-01-07
All historical holders
Every license row we've seen with the callsign AD4AJ, oldest first.
- SNYDER II, WILLIAM T NC2002-12-30 → cancelled 2010-03-30
- Jeffcoat, Douglas A SC2024-10-11 active