Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU8J callsign genealogy
Currently held by Walker, Donald L
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 KU8J's current licensee, walking backwards.
- Walker, Donald LKYgranted 2013-06-17cancelled 2013-07-16
Successor callsigns
Callsigns held now by people who previously held KU8J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KU8J, oldest first.
- MC MURPHY, WILLIAM L MI1997-10-27 → cancelled 2009-10-28
- Walker, Donald L AL2023-06-03 active