Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W4LFJ callsign genealogy
Currently held by FINKELSTEIN JR, LEO
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 W4LFJ's current licensee, walking backwards.
- FINKELSTEIN JR, LEOOHgranted 1997-03-05cancelled 2003-01-07
- KC0CYno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4LFJ.
No current licensee on record previously held this callsign.