Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK6ZTF callsign genealogy
Currently held by Amateur International Radio System
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 KK6ZTF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK6ZTF.
- WA1IRSactiveAmateur International Radio SystemCAgranted 2016-02-02