Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN6YWL callsign genealogy
Currently held by Butterfield, Max
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 KN6YWL's current licensee, walking backwards.
- Butterfield, MaxCAgranted 2025-09-12
Successor callsigns
Callsigns held now by people who previously held KN6YWL.
- Butterfield, MaxCAgranted 2025-09-12