Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD0NN callsign genealogy
Currently held by Nielsen, Donald G
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 WD0NN's current licensee, walking backwards.
- Nielsen, Donald GMNgranted 2023-03-24cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held WD0NN.
No current licensee on record previously held this callsign.