Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0TZJ callsign genealogy
Currently held by HEIL, CHRISTOPHER 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 W0TZJ's current licensee, walking backwards.
- HEIL, CHRISTOPHER JINgranted 2020-09-14cancelled 2020-10-02
Successor callsigns
Callsigns held now by people who previously held W0TZJ.
No current licensee on record previously held this callsign.