Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG1OCK callsign genealogy
Currently held by McDonald, Michael 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 KG1OCK's current licensee, walking backwards.
- McDonald, Michael SGAgranted 2020-10-19cancelled 2020-11-07
Successor callsigns
Callsigns held now by people who previously held KG1OCK.
No current licensee on record previously held this callsign.