Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9AY callsign genealogy
Currently held by OBERG, CHARLES 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 AB9AY's current licensee, walking backwards.
- OBERG, CHARLES MILgranted 1994-04-12cancelled 2000-12-06
Successor callsigns
Callsigns held now by people who previously held AB9AY.
No current licensee on record previously held this callsign.