Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9JRF callsign genealogy
Currently held by Frischkorn, J Richard
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 W9JRF's current licensee, walking backwards.
- Frischkorn, J RichardINgranted 2010-02-25cancelled 2011-02-11
Successor callsigns
Callsigns held now by people who previously held W9JRF.
No current licensee on record previously held this callsign.