Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4GU callsign genealogy
Currently held by Allred, Michael B
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 KU4GU's current licensee, walking backwards.
- KD4SPCno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KU4GU.
- Allred, Michael BALgranted 2025-04-08