Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2YOL callsign genealogy
Currently held by MadSciGuys Amateur Radio Association
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 KC2YOL'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 KC2YOL.
- N2SCIactiveMadSciGuys Amateur Radio AssociationNYgranted 2020-07-07