Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DRB callsign genealogy
Currently held by Nolde, Shirlene E
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 K4DRB's current licensee, walking backwards.
- Bjorklund, Daniel RSCgranted 2018-05-16cancelled 2022-11-05
Successor callsigns
Callsigns held now by people who previously held K4DRB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DRB, oldest first.
- Nolde, Shirlene E FL2010-05-24 → cancelled 2022-08-09
- Bjorklund, Daniel R SC2022-11-05 active