Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NNL callsign genealogy
Currently held by RISACHER, BILLIE 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 W4NNL's current licensee, walking backwards.
- RISACHER, BILLIE FSCgranted 2008-04-23cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held W4NNL.
No current licensee on record previously held this callsign.