Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OBA callsign genealogy
Currently held by Rougier, Christopher 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 K4OBA's current licensee, walking backwards.
- Rougier, Christopher MFLgranted 2020-06-15cancelled 2020-08-14
Successor callsigns
Callsigns held now by people who previously held K4OBA.
No current licensee on record previously held this callsign.