Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9YJZ callsign genealogy
Currently held by BRANCH, WILLIAM P
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 K9YJZ's current licensee, walking backwards.
- Branch, Stephen AINgranted 2006-09-26cancelled 2006-11-10
Successor callsigns
Callsigns held now by people who previously held K9YJZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9YJZ, oldest first.
- BRANCH, WILLIAM P IN1996-05-09 → cancelled 2004-10-23
- Branch, Stephen A IN2016-09-17 active