Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6ZRX callsign genealogy
Currently held by Heide, Joshua C
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 K6ZRX's current licensee, walking backwards.
- HEIDE, JOSHUA CCAgranted 2002-03-20cancelled 2005-03-22
Successor callsigns
Callsigns held now by people who previously held K6ZRX.
No current licensee on record previously held this callsign.