Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6ZZZ callsign genealogy
Currently held by JOHNSON, JOHN R
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 K6ZZZ's current licensee, walking backwards.
- HOLLAR, RICHARD TCAgranted 2010-07-17cancelled 2020-03-24
- KC6KGKno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K6ZZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6ZZZ, oldest first.
- JOHNSON, JOHN R IA2007-12-29 → cancelled 2020-03-04
- HOLLAR, RICHARD T CA2020-03-24 active