Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC0JL callsign genealogy
Currently held by KRASSA, ROBERT F T
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 AC0JL's current licensee, walking backwards.
- Krassa, Robert F TCOgranted 2004-09-29cancelled 2007-10-02
Successor callsigns
Callsigns held now by people who previously held AC0JL.
No current licensee on record previously held this callsign.