Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4NOT callsign genealogy
Currently held by Heigl, Ralph
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 KA4NOT's current licensee, walking backwards.
- Heigl, RalphGAgranted 2021-02-24cancelled 2021-03-16
Successor callsigns
Callsigns held now by people who previously held KA4NOT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4NOT, oldest first.
- MARENICK, JOSEPH J VA1996-02-12 → cancelled 2008-02-13
- Heigl, Ralph GA2021-03-16 active