Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9TAZ callsign genealogy
Currently held by Cook, Michael 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 KC9TAZ's current licensee, walking backwards.
- Cook, Michael RWIgranted 2010-04-20cancelled 2010-05-14
Successor callsigns
Callsigns held now by people who previously held KC9TAZ.
No current licensee on record previously held this callsign.