Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4PT callsign genealogy
Currently held by GARDNER, DONALD E
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 AD4PT's current licensee, walking backwards.
- KF5FQYcancelledCoast Guard Amateur Radio ClubTXgranted 2010-03-23cancelled 2010-04-27
Successor callsigns
Callsigns held now by people who previously held AD4PT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD4PT, oldest first.
- GARDNER, DONALD E NC2003-11-12 → cancelled 2010-03-08
- Coast Guard Amateur Radio Club TX2020-05-02 active