Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W0TYZ callsign genealogy
Currently held by RISSMILLER JR, RALPH W
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 W0TYZ's current licensee, walking backwards.
- RISSMILLER JR, RALPH WMOgranted 2006-03-14cancelled 2012-05-26
Successor callsigns
Callsigns held now by people who previously held W0TYZ.
No current licensee on record previously held this callsign.