Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0OL callsign genealogy
Currently held by KOSSUTH JR, JOHN E
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 AC0OL's current licensee, walking backwards.
- KOSSUTH JR, JOHN EKSgranted 2003-07-17cancelled 2009-03-24
Successor callsigns
Callsigns held now by people who previously held AC0OL.
No current licensee on record previously held this callsign.