Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG7ISN callsign genealogy
Currently held by Tonini, Calvin
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 KG7ISN's current licensee, walking backwards.
- Tonini, CalvinNVgranted 2014-01-13cancelled 2014-02-12
Successor callsigns
Callsigns held now by people who previously held KG7ISN.
No current licensee on record previously held this callsign.