Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4RSD callsign genealogy
Currently held by Davison III, Russell S
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 KM4RSD's current licensee, walking backwards.
- Davison III, Russell SKYgranted 2014-05-01cancelled 2014-05-20
Successor callsigns
Callsigns held now by people who previously held KM4RSD.
No current licensee on record previously held this callsign.