Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB6DB callsign genealogy
Currently held by SUNDSTROM, DON 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 WB6DB's current licensee, walking backwards.
- SUNDSTROM, DON BCAgranted 2012-02-21cancelled 2016-04-12
Successor callsigns
Callsigns held now by people who previously held WB6DB.
No current licensee on record previously held this callsign.