Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB1CLS callsign genealogy
Currently held by STONE, MICHAEL A
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 KB1CLS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB1CLS.
- K1CNHexpiredGILFORD MIDDLE HIGH SCHOOL AMATEUR RADIO CLUBNHgranted 1998-04-22cancelled 2010-04-23