Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3DU callsign genealogy
Currently held by Bradford, Jeremy S
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 AB3DU's current licensee, walking backwards.
- Bradford, Jeremy SMDgranted 2004-08-20cancelled 2006-07-17
Successor callsigns
Callsigns held now by people who previously held AB3DU.
- Bradford, Jeremy SMDgranted 2026-06-23