Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG1Z callsign genealogy
Currently held by Osgood Jr., Richard 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 KG1Z's current licensee, walking backwards.
- Osgood Jr., Richard JMEgranted 2015-05-08cancelled 2018-06-19
Successor callsigns
Callsigns held now by people who previously held KG1Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG1Z, oldest first.
- CLARK, ROBERT L MI2006-04-13 → cancelled 2018-05-30
- Osgood Jr., Richard J ME2018-06-19 active