Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS1RJN callsign genealogy
Currently held by SIRRINE, JOHN G
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 KS1RJN's current licensee, walking backwards.
- SIRRINE, JOHN GAZgranted 2020-12-09cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held KS1RJN.
No current licensee on record previously held this callsign.