Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9TCS callsign genealogy
Currently held by Queen, Jeffry 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 K9TCS's current licensee, walking backwards.
- Queen, Jeffry MALgranted 2015-12-08cancelled 2020-09-15
Successor callsigns
Callsigns held now by people who previously held K9TCS.
No current licensee on record previously held this callsign.