Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4DOZ callsign genealogy
Currently held by Johnston, Robert 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 KN4DOZ's current licensee, walking backwards.
- Johnston, Robert LALgranted 2009-05-08cancelled 2017-05-27
Successor callsigns
Callsigns held now by people who previously held KN4DOZ.
No current licensee on record previously held this callsign.