Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4QQG callsign genealogy
Currently held by Schroeder, John 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 K4QQG's current licensee, walking backwards.
- Schroeder, John LSCgranted 2018-11-21cancelled 2019-02-23
Successor callsigns
Callsigns held now by people who previously held K4QQG.
No current licensee on record previously held this callsign.