Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WF0H callsign genealogy
Currently held by OSLER, WILLIAM F
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 WF0H's current licensee, walking backwards.
- Padula, Michael AOHgranted 2008-03-11cancelled 2008-06-28
Successor callsigns
Callsigns held now by people who previously held WF0H.
- OSLER, WILLIAM FMNgranted 2022-02-16
All historical holders
Every license row we've seen with the callsign WF0H, oldest first.
- OSLER, WILLIAM F MN1994-02-08 → cancelled 2002-04-04
- PADULA, MICHAEL A OH2018-04-19 active