Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8RFI callsign genealogy
Currently held by OSTERWYK, JOSEPH P
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 W8RFI's current licensee, walking backwards.
- OSTERWYK, JOSEPH PMIgranted 1999-02-23cancelled 2004-05-26
Successor callsigns
Callsigns held now by people who previously held W8RFI.
No current licensee on record previously held this callsign.