Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7UR callsign genealogy
Currently held by Proehl, Jonathan 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 KJ7UR's current licensee, walking backwards.
- Proehl, Jonathan TNVgranted 2008-09-17cancelled 2013-01-29
Successor callsigns
Callsigns held now by people who previously held KJ7UR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ7UR, oldest first.
- PROEHL, JONATHAN T NV1996-02-12 → cancelled 2001-10-11
- Proehl, Jonathan T NV2013-01-29 → cancelled 2025-01-30