Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9BU callsign genealogy
Currently held by Miller, Michael L
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 AB9BU's current licensee, walking backwards.
- Miller, Michael LILgranted 2001-01-10cancelled 2001-04-10
Successor callsigns
Callsigns held now by people who previously held AB9BU.
- MILLER, MICHAEL LILgranted 2015-11-04