Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4UN callsign genealogy
Currently held by PLUMMER II, RICHARD 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 W4UN's current licensee, walking backwards.
- PLUMMER II, RICHARD DNEgranted 1996-03-14cancelled 2001-02-10
Successor callsigns
Callsigns held now by people who previously held W4UN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4UN, oldest first.
- WILLIAMS, BLAKE TN1997-09-18 → cancelled 1999-01-22
- PLUMMER II, RICHARD D TN2020-12-16 active