Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7ZJH callsign genealogy
Currently held by Heisinger, Zachary J
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 K7ZJH's current licensee, walking backwards.
- Heisinger, Zachary JAZgranted 2020-06-15cancelled 2020-07-31
Successor callsigns
Callsigns held now by people who previously held K7ZJH.
No current licensee on record previously held this callsign.