Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC9IJ callsign genealogy
Currently held by SAPUNDZHIEV, BORIS
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 AC9IJ's current licensee, walking backwards.
- Sapundzhiev, BorisILgranted 2014-05-16cancelled 2014-05-19
Successor callsigns
Callsigns held now by people who previously held AC9IJ.
No current licensee on record previously held this callsign.