Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4Z callsign genealogy
Currently held by BLEDSOE, MICHAEL 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 KU4Z's current licensee, walking backwards.
- BLEDSOE, MICHAEL DGAgranted 2002-05-16cancelled 2011-02-15
Successor callsigns
Callsigns held now by people who previously held KU4Z.
- CORLEY, FRANK JALgranted 2009-01-27cancelled 2009-03-17
All historical holders
Every license row we've seen with the callsign KU4Z, oldest first.
- TRIPP, HOWARD L NC1995-04-22 → cancelled 2004-06-28
- CORLEY, FRANK J AL2006-08-26 → cancelled 2009-01-27
- BLEDSOE, MICHAEL D NC2020-12-11 active