Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6JBM callsign genealogy
Currently held by MC COULSKEY, JEFFREY B
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 W6JBM's current licensee, walking backwards.
- MC COULSKEY, JEFFREY BVAgranted 2014-03-31cancelled 2014-05-06
Successor callsigns
Callsigns held now by people who previously held W6JBM.
- KUBIAS, FREDRIC FCAgranted 1996-08-09cancelled 2008-08-12