Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB6D callsign genealogy
Currently held by MATHEWS, BRIAN P
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 AB6D's current licensee, walking backwards.
- MATHEWS, BRIAN PCAgranted 2010-02-17cancelled 2010-03-09
Successor callsigns
Callsigns held now by people who previously held AB6D.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB6D, oldest first.
- ROBINSON, BARNEY J CA1998-05-11 → cancelled 2006-05-17
- MATHEWS, BRIAN P CA2019-12-13 active