Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9THZ callsign genealogy
Currently held by Gross Jr, Delmer R
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 K9THZ's current licensee, walking backwards.
- Gross Jr, Delmer RINgranted 2014-08-18cancelled 2014-09-27
Successor callsigns
Callsigns held now by people who previously held K9THZ.
No current licensee on record previously held this callsign.