Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4BW callsign genealogy
Currently held by MC GRATH, FRANCIS 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 AB4BW's current licensee, walking backwards.
- Wilson, Benjamin PSCgranted 2003-12-19cancelled 2008-01-23
Successor callsigns
Callsigns held now by people who previously held AB4BW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4BW, oldest first.
- MC GRATH, FRANCIS W FL1994-08-10 → cancelled 2005-04-28
- Wilson, Benjamin P SC2017-11-28 active