Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0JNH callsign genealogy
Currently held by Schroeder, Mark V
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 N0JNH's current licensee, walking backwards.
- Schroeder, Mark VMNgranted 2017-10-24cancelled 2018-07-17
Successor callsigns
Callsigns held now by people who previously held N0JNH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0JNH, oldest first.
- DUNN, JACK L MN1998-08-18 → cancelled 2010-08-19
- Schroeder, Mark V MN2018-07-17 active