Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4DW callsign genealogy
Currently held by TREECE, MARVIN L
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 AD4DW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AD4DW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD4DW, oldest first.
- TREECE, MARVIN L NC2003-02-19 → cancelled 2015-05-12
- Israel, Eric J FL2018-05-05 active