Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4F callsign genealogy
Currently held by TOLER, OSBORNE W
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 KV4F's current licensee, walking backwards.
- TOLER, OSBORNE WKYgranted 1998-04-20cancelled 2000-11-21
Successor callsigns
Callsigns held now by people who previously held KV4F.
- HARRISON, SHERMAN ATNgranted 2007-01-19cancelled 2019-03-28