Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9TZX callsign genealogy
Currently held by Skala, Tyler M
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 KC9TZX's current licensee, walking backwards.
- James, Tyler MINgranted 2009-04-17cancelled 2011-04-07
Successor callsigns
Callsigns held now by people who previously held KC9TZX.
- Skala, Tyler MKYgranted 2025-07-11