Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8BTT callsign genealogy
Currently held by Cooper, Colin E
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 K8BTT's current licensee, walking backwards.
- Cooper, Colin EMIgranted 2012-01-24cancelled 2012-02-11
Successor callsigns
Callsigns held now by people who previously held K8BTT.
- Cooper, Colin EOHgranted 2024-09-24