Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB9CO callsign genealogy
Currently held by Hall, Michael G
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 AB9CO's current licensee, walking backwards.
- Hall, Michael GILgranted 1996-02-12cancelled 2001-07-11
Successor callsigns
Callsigns held now by people who previously held AB9CO.
No current licensee on record previously held this callsign.