Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3DJ callsign genealogy
Currently held by Stock, Robert F
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 AB3DJ's current licensee, walking backwards.
- STOCK, ROBERT FPAgranted 1998-12-14cancelled 2005-09-13
Successor callsigns
Callsigns held now by people who previously held AB3DJ.
No current licensee on record previously held this callsign.