Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AD2Z callsign genealogy
Currently held by Donivan, Gary 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 AD2Z's current licensee, walking backwards.
- Heckman JR, Seward DNYgranted 2021-02-22cancelled 2021-07-02
Successor callsigns
Callsigns held now by people who previously held AD2Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD2Z, oldest first.
- DONCHE, ANDREW D NJ1997-04-08 → cancelled 2002-08-11
- Donivan, Gary J NY2018-08-29 → cancelled 2019-06-13
- Heckman JR, Seward D NY2021-07-02 active