Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WFO callsign genealogy
Currently held by FALK, WILLIAM O
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 W4WFO's current licensee, walking backwards.
- FALK, WILLIAM OFLgranted 2009-03-26cancelled 2009-04-14
Successor callsigns
Callsigns held now by people who previously held W4WFO.
No current licensee on record previously held this callsign.