Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ5MKU callsign genealogy
Currently held by Friedel, David
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 KJ5MKU's current licensee, walking backwards.
- Friedel, DavidLAgranted 2025-04-16cancelled 2025-05-28
Successor callsigns
Callsigns held now by people who previously held KJ5MKU.
No current licensee on record previously held this callsign.