Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RDB callsign genealogy
Currently held by Dinsmore OMD, Richard 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 K1RDB's current licensee, walking backwards.
- Dinsmore OMD, Richard ACAgranted 2007-03-19cancelled 2007-04-27
Successor callsigns
Callsigns held now by people who previously held K1RDB.
No current licensee on record previously held this callsign.