Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ5EM callsign genealogy
Currently held by SCHILLING, JOHN R
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 KJ5EM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ5EM.
- SCHILLING, JOHN RCOgranted 2012-11-14cancelled 2020-07-07
All historical holders
Every license row we've seen with the callsign KJ5EM, oldest first.
- SCHILLING, JOHN R CO2012-11-14 → cancelled 2020-06-16
- Schilling, John R NM2022-04-22 active