Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3SD callsign genealogy
Currently held by SMITHSON JR, JAMES T
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 AB3SD's current licensee, walking backwards.
- SMITHSON JR, JAMES TMDgranted 2010-07-28cancelled 2013-04-22
Successor callsigns
Callsigns held now by people who previously held AB3SD.
No current licensee on record previously held this callsign.