Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8HZ callsign genealogy
Currently held by HEITZ, MICHAEL W
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 K8HZ's current licensee, walking backwards.
- HEITZ, MICHAEL WOHgranted 2011-10-14cancelled 2011-12-23
Successor callsigns
Callsigns held now by people who previously held K8HZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8HZ, oldest first.
- WALLS SR, ROY K OH2007-01-17 → cancelled 2009-12-02
- HEITZ, MICHAEL W OH2021-10-01 active