Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG9ZTX callsign genealogy
Currently held by ZIMMERMAN, GARY G
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 KG9ZTX's current licensee, walking backwards.
- ZIMMERMAN, GARY GTXgranted 2018-04-24cancelled 2019-01-01
Successor callsigns
Callsigns held now by people who previously held KG9ZTX.
No current licensee on record previously held this callsign.