Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2SI callsign genealogy
Currently held by SILBERT, SAUL N
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 K2SI's current licensee, walking backwards.
- Fregoe, Duane ENYgranted 2006-01-25cancelled 2008-02-12
Successor callsigns
Callsigns held now by people who previously held K2SI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2SI, oldest first.
- SILBERT, SAUL N AZ1996-07-15 → cancelled 2005-08-03
- Fregoe, Duane E NY2017-11-21 active