Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4FNZ callsign genealogy
Currently held by Jeffers, William D
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 W4FNZ's current licensee, walking backwards.
- Jeffers, William DGAgranted 2020-03-13cancelled 2020-04-11
Successor callsigns
Callsigns held now by people who previously held W4FNZ.
No current licensee on record previously held this callsign.