Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0SBG callsign genealogy
Currently held by GRISWOLD, SHANNON 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 W0SBG's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0SBG.
No current licensee on record previously held this callsign.