Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS1Y callsign genealogy
Currently held by WESTERN MASS CONTEST CLUB
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 KS1Y's current licensee, walking backwards.
- Lorenzoni, EnricoCAgranted 2014-10-09cancelled 2014-11-01
Successor callsigns
Callsigns held now by people who previously held KS1Y.
- NX3UcancelledINDIANA DX AND CONTEST CLUBINgranted 2012-10-13cancelled 2021-07-13
All historical holders
Every license row we've seen with the callsign KS1Y, oldest first.
- WESTERN MASS CONTEST CLUB MA2008-01-29 → cancelled 2012-10-13
- Lorenzoni, Enrico CA2024-08-06 active
- SAWYER, EDWARD D— → cancelled 1998-06-10