Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RIO callsign genealogy
Currently held by Rio, Joseph 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 K7RIO's current licensee, walking backwards.
- Rio, Joseph RAZgranted 2009-10-06cancelled 2015-07-25
Successor callsigns
Callsigns held now by people who previously held K7RIO.
No current licensee on record previously held this callsign.