Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN1Y callsign genealogy
Currently held by RYAN, THOMAS H
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 KN1Y's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN1Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN1Y, oldest first.
- RYAN, THOMAS H CT1997-10-08 → cancelled 2009-10-09
- Group M Nor East CA2020-07-13 active