Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN0EWM callsign genealogy
Currently held by Groszbach, Arnold E
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 WN0EWM's current licensee, walking backwards.
- Groszbach, Arnold EMNgranted 2003-03-18cancelled 2003-05-09
Successor callsigns
Callsigns held now by people who previously held WN0EWM.
- Groszbach, Arnold EMNgranted 2015-06-04