Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9RIO callsign genealogy
Currently held by RIO, ANTHONY M
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 KD9RIO's current licensee, walking backwards.
- RIO, ANTHONY MWIgranted 2015-11-24cancelled 2015-12-18
Successor callsigns
Callsigns held now by people who previously held KD9RIO.
No current licensee on record previously held this callsign.