Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0PAZ callsign genealogy
Currently held by Johnston, Larry F
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 K0PAZ's current licensee, walking backwards.
- Johnston, Larry FCOgranted 2021-08-23cancelled 2021-09-10
Successor callsigns
Callsigns held now by people who previously held K0PAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0PAZ, oldest first.
- Kopaz, John A CO2000-02-05 → cancelled 2012-02-07
- Johnston, Larry F CO2021-09-10 active