Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4SJ callsign genealogy
Currently held by Jordan III, Onis
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 AB4SJ's current licensee, walking backwards.
- Jordan III, Onis CALgranted 2007-11-29cancelled 2008-11-25
Successor callsigns
Callsigns held now by people who previously held AB4SJ.
- CHEATWOOD, WILLIAM KALgranted 2016-04-07