Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9SZK callsign genealogy
Currently held by CAULFIELD, KYLE
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 KC9SZK's current licensee, walking backwards.
- Caulfield, KyleILgranted 2010-07-30cancelled 2010-08-13
Successor callsigns
Callsigns held now by people who previously held KC9SZK.
- CAULFIELD, KYLEILgranted 2020-07-08