Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9YHR callsign genealogy
Currently held by Alessandro, Mastrosimone
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 K9YHR's current licensee, walking backwards.
- Alessandro, MastrosimoneNJgranted 2017-06-28cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held K9YHR.
No current licensee on record previously held this callsign.