Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9CXX callsign genealogy
Currently held by Bullough, Michael J
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 K9CXX's current licensee, walking backwards.
- Bullough, Michael JWIgranted 2022-04-13cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held K9CXX.
No current licensee on record previously held this callsign.