Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB6SFC callsign genealogy
Currently held by LYKKEN, DOUGLASS M
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 WB6SFC's current licensee, walking backwards.
- KN6ISKcancelledSherwood Amateur Radio AssociationCAgranted 2020-05-06cancelled 2020-05-27
Successor callsigns
Callsigns held now by people who previously held WB6SFC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB6SFC, oldest first.
- LYKKEN, DOUGLASS M CA2004-01-12 → cancelled 2016-04-06
- Sherwood Amateur Radio Association CA2020-05-27 active