Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9KTF callsign genealogy
Currently held by Cooper, Joshua L
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 K9KTF's current licensee, walking backwards.
- Cooper, Joshua LOKgranted 2024-04-30cancelled 2024-09-17
Successor callsigns
Callsigns held now by people who previously held K9KTF.
No current licensee on record previously held this callsign.