Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7BU callsign genealogy
Currently held by RETZ, WILLARD J
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 K7BU's current licensee, walking backwards.
- RETZ, WILLARD JUTgranted 1992-04-07cancelled 1999-12-17
- WB7FBDno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K7BU.
No current licensee on record previously held this callsign.