Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ9O callsign genealogy
Currently held by Boling Jr, Paul A
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 KJ9O's current licensee, walking backwards.
- Scheffler, JamesMIgranted 2025-12-16cancelled 2026-06-27
Successor callsigns
Callsigns held now by people who previously held KJ9O.
- BURT, HAROLD EILgranted 2020-01-27
All historical holders
Every license row we've seen with the callsign KJ9O, oldest first.
- BURT, HAROLD E IL1996-06-12 → cancelled 2000-02-22
- Boling Jr, Paul A IN2013-07-12 → cancelled 2026-03-07
- Scheffler, James MI2026-06-27 active