Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DIY callsign genealogy
Currently held by Donnell, Randal
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 W4DIY's current licensee, walking backwards.
- Donnell, RandalMNgranted 2020-11-20cancelled 2020-12-08
Successor callsigns
Callsigns held now by people who previously held W4DIY.
No current licensee on record previously held this callsign.