Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NN6J callsign genealogy
Currently held by Nadler, Joel L
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 NN6J's current licensee, walking backwards.
- Obermeyer, Michael JCAgranted 2019-07-18cancelled 2019-11-08
Successor callsigns
Callsigns held now by people who previously held NN6J.
- RODAU, ALFRED ACAgranted 1996-06-24cancelled 2008-06-25
All historical holders
Every license row we've seen with the callsign NN6J, oldest first.
- Nadler, Joel L CA2010-03-12 → cancelled 2017-09-08
- Obermeyer, Michael J MO2019-11-08 active