Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3DIR callsign genealogy
Currently held by Thunberg, Robert B
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 N3DIR's current licensee, walking backwards.
- Thunberg, Robert BPAgranted 2011-08-17cancelled 2011-12-09
Successor callsigns
Callsigns held now by people who previously held N3DIR.
No current licensee on record previously held this callsign.