Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3SI callsign genealogy
Currently held by ENGEL, CHARLES W
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 AB3SI's current licensee, walking backwards.
- ENGEL, CHARLES WMDgranted 2007-05-05cancelled 2013-05-13
Successor callsigns
Callsigns held now by people who previously held AB3SI.
No current licensee on record previously held this callsign.