Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9GCP callsign genealogy
Currently held by Petersen, Garret C
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 K9GCP's current licensee, walking backwards.
- PETERSEN, GARRET CILgranted 2020-03-10cancelled 2021-03-16
Successor callsigns
Callsigns held now by people who previously held K9GCP.
No current licensee on record previously held this callsign.