Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9YXZ callsign genealogy
Currently held by Casper, Michael F
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 W9YXZ's current licensee, walking backwards.
- Casper, Michael FILgranted 2021-08-19cancelled 2021-09-08
Successor callsigns
Callsigns held now by people who previously held W9YXZ.
No current licensee on record previously held this callsign.