Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WO8F callsign genealogy
Currently held by BIEREMA, ALAN L
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 WO8F's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WO8F.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WO8F, oldest first.
- BIEREMA, ALAN L MI1989-01-31 → cancelled 2001-02-01
- OLSEN, WILLIAM F MI2022-08-03 active