Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0IUG callsign genealogy
Currently held by Theisen, William 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 N0IUG's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N0IUG.
- Theisen, William BIAgranted 2024-11-06