Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC7HY callsign genealogy
Currently held by Muggli, Robert Z
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 AC7HY's current licensee, walking backwards.
- MUGGLI, ROBERT ZAZgranted 1998-06-15cancelled 2000-07-08
Successor callsigns
Callsigns held now by people who previously held AC7HY.
No current licensee on record previously held this callsign.