Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4FZR callsign genealogy
Currently held by Fridley, John D
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 KG4FZR's current licensee, walking backwards.
- KF4CFOcancelledMC MINN COUNTY AMATEUR RADIO CLUB INCTNgranted 2005-07-07cancelled 2006-04-11
Successor callsigns
Callsigns held now by people who previously held KG4FZR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG4FZR, oldest first.
- Fridley, John D TN2000-01-15 → cancelled 2006-02-09
- Mc Minn County Amateur Radio Club Inc TN2026-03-12 active