Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1YKU callsign genealogy
Currently held by Swampscott High School Amateur Radio 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 KC1YKU'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 KC1YKU.
- N1SHSactiveSwampscott High School Amateur Radio ClubMAgranted 2025-12-12