Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4CHA callsign genealogy
Currently held by O Coiligh, Kristian S
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 KK4CHA's current licensee, walking backwards.
- O Coiligh, Kristian SFLgranted 2011-04-19cancelled 2011-05-23
Successor callsigns
Callsigns held now by people who previously held KK4CHA.
No current licensee on record previously held this callsign.