Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4AVF callsign genealogy
Currently held by CHAPMAN, WILLIAM M
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 W4AVF's current licensee, walking backwards.
- Chapman, William MKYgranted 2014-05-01cancelled 2015-06-09
Successor callsigns
Callsigns held now by people who previously held W4AVF.
No current licensee on record previously held this callsign.