Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB0TUJ callsign genealogy
Currently held by MARQUARDT, LLOYD 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 WB0TUJ'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 WB0TUJ.
- Marquardt, Lloyd BWAgranted 2006-12-01cancelled 2007-03-30