Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9KSW callsign genealogy
Currently held by Henry O Sheets Sr Memorial ARC
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 KC9KSW'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 KC9KSW.
- WA9SPRactiveHenry O Sheets Sr Memorial ARCINgranted 2017-02-22