Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RDO callsign genealogy
Currently held by PORTER, BENJAMIN E
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 K9RDO's current licensee, walking backwards.
- PORTER, BENJAMIN EILgranted 1997-03-05cancelled 2006-12-16
Successor callsigns
Callsigns held now by people who previously held K9RDO.
No current licensee on record previously held this callsign.