Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM7DRB callsign genealogy
Currently held by Stone, Riley J
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 KM7DRB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KM7DRB.
No current licensee on record previously held this callsign.