Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9BJ callsign genealogy
Currently held by o Keefe, James A
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 AB9BJ's current licensee, walking backwards.
- o Keefe, James AILgranted 2000-06-23cancelled 2001-02-01
Successor callsigns
Callsigns held now by people who previously held AB9BJ.
- O'Keefe, James AILgranted 2021-09-15