Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DNJ callsign genealogy
Currently held by Lobner, 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 W9DNJ's current licensee, walking backwards.
- Lobner, John RILgranted 2003-03-18cancelled 2003-10-15
Successor callsigns
Callsigns held now by people who previously held W9DNJ.
- Lobner, John RILgranted 2024-05-14