Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA0ZDR callsign genealogy
Currently held by Early Jr, Marvin M
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 WA0ZDR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WA0ZDR.
- Early Jr. PhD, Marvin MKSgranted 2018-11-02