Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TRJ callsign genealogy
Currently held by Mueggenborg, CYNTHIA A
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 K4TRJ's current licensee, walking backwards.
- DESCHER, CYNTHIA AFLgranted 1999-04-05cancelled 2000-03-11
Successor callsigns
Callsigns held now by people who previously held K4TRJ.
No current licensee on record previously held this callsign.