Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ADJ callsign genealogy
Currently held by Mayger Jr, John F
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 W4ADJ's current licensee, walking backwards.
- Drummond, Allan HALgranted 2013-09-10cancelled 2016-08-05
Successor callsigns
Callsigns held now by people who previously held W4ADJ.
- Mayger Jr, John FFLgranted 2003-05-23cancelled 2015-05-27
All historical holders
Every license row we've seen with the callsign W4ADJ, oldest first.
- Mayger Jr, John F FL1998-05-06 → cancelled 2003-05-23
- Drummond, Allan H AL2016-08-05 active