Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4GGU callsign genealogy
Currently held by Barr IV, Carl H
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 KN4GGU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KN4GGU.
- Barr IV, Carl HFLgranted 2017-10-28