Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9LB callsign genealogy
Currently held by BERGMAN Mr, DAVID L
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 AD9LB's current licensee, walking backwards.
- BERGMAN Mr, DAVID LILgranted 2018-03-07cancelled 2020-03-10
Successor callsigns
Callsigns held now by people who previously held AD9LB.
No current licensee on record previously held this callsign.