Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9KYY callsign genealogy
Currently held by Hassen, Shaun M
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 KC9KYY's current licensee, walking backwards.
- Hassen, Shaun MILgranted 1997-05-23cancelled 2007-03-07
Successor callsigns
Callsigns held now by people who previously held KC9KYY.
- Hassen, Shaun MILgranted 2017-03-08