Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA4CRT callsign genealogy
Currently held by Thorn, Andre C 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 KA4CRT's current licensee, walking backwards.
- Thorn, Andre C RALgranted 2014-09-12cancelled 2014-10-21
Successor callsigns
Callsigns held now by people who previously held KA4CRT.
- JEFFREY, WILLIAM RKYgranted 1990-08-28cancelled 2002-08-29