Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4ZHG callsign genealogy
Currently held by WIDMER, JUDY J
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 KJ4ZHG's current licensee, walking backwards.
- WIDMER, JUDY JSCgranted 2010-10-18cancelled 2010-11-22
Successor callsigns
Callsigns held now by people who previously held KJ4ZHG.
- WIDMER, JUDY JSCgranted 2020-08-04