Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO9LF callsign genealogy
Currently held by OPALKA, BRIAN R
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 WO9LF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WO9LF.
No current licensee on record previously held this callsign.