Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9FY callsign genealogy
Currently held by Mueller, Steven J
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 AC9FY's current licensee, walking backwards.
- Mueller, Steven JWIgranted 2012-11-27cancelled 2013-07-29
Successor callsigns
Callsigns held now by people who previously held AC9FY.
- Mueller, Steven JTXgranted 2024-06-12