Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0YZ callsign genealogy
Currently held by Grube, Pat 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 AC0YZ's current licensee, walking backwards.
- Grube, Patricia MNEgranted 2011-10-04cancelled 2012-02-09
Successor callsigns
Callsigns held now by people who previously held AC0YZ.
No current licensee on record previously held this callsign.