Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SDK callsign genealogy
Currently held by Sam D, Kim
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 K9SDK's current licensee, walking backwards.
- Sam D, KimCAgranted 2014-11-12cancelled 2015-04-28
Successor callsigns
Callsigns held now by people who previously held K9SDK.
No current licensee on record previously held this callsign.