Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AC3DF callsign genealogy
Currently held by Zelinsky Jr, John 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 AC3DF's current licensee, walking backwards.
- Zelinsky Jr, John JPAgranted 2018-06-27cancelled 2018-07-16
Successor callsigns
Callsigns held now by people who previously held AC3DF.
- Zelinsky Jr, John JAKgranted 2018-06-27