Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4BJI callsign genealogy
Currently held by De La Cruz, Jason R
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 KJ4BJI's current licensee, walking backwards.
- De La Cruz, Jason RFLgranted 2008-01-14cancelled 2008-01-15
Successor callsigns
Callsigns held now by people who previously held KJ4BJI.
- DE LA CRUZ, JASON RWAgranted 2018-02-02