Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W6OH callsign genealogy
Currently held by RUBIO, MARIO F
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 W6OH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W6OH.
No current licensee on record previously held this callsign.