Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB1DRU callsign genealogy
Currently held by LA BRANCHE, LIONEL A
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 WB1DRU's current licensee, walking backwards.
- Dangelmayer, AndrewMAgranted 2020-04-22cancelled 2020-05-12
Successor callsigns
Callsigns held now by people who previously held WB1DRU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB1DRU, oldest first.
- LA BRANCHE, LIONEL A NH1994-03-29 → cancelled 2006-03-30
- Dangelmayer, Andrew MA2020-05-12 active