Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0H callsign genealogy
Currently held by Holsclaw, David 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 KZ0H's current licensee, walking backwards.
- Holsclaw, David HMOgranted 2015-10-09cancelled 2016-05-10
Successor callsigns
Callsigns held now by people who previously held KZ0H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ0H, oldest first.
- ZELLER, GARY L PA2004-01-28 → cancelled 2016-04-20
- Holsclaw, David H MO2026-02-27 active