Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5MBJ callsign genealogy
Currently held by BENAVIDES Jr, MARIO A
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 K5MBJ's current licensee, walking backwards.
- BENAVIDES Jr, MARIO ATXgranted 2014-01-15cancelled 2017-08-11
Successor callsigns
Callsigns held now by people who previously held K5MBJ.
No current licensee on record previously held this callsign.