Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ0DX callsign genealogy
Currently held by Grensteiner, Gordon H
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 KJ0DX's current licensee, walking backwards.
- Grensteiner, Gordon HIAgranted 2010-04-21cancelled 2016-04-26
Successor callsigns
Callsigns held now by people who previously held KJ0DX.
No current licensee on record previously held this callsign.