Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5BU callsign genealogy
Currently held by SORSBY, WILLIAM B
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 N5BU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N5BU.
- WILLARD, WILLIAM DARgranted 2003-08-08cancelled 2004-07-13
All historical holders
Every license row we've seen with the callsign N5BU, oldest first.
- SORSBY, WILLIAM B TX1997-10-21 → cancelled 2001-07-10
- WILLARD, WILLIAM D AR2003-08-08 → cancelled 2004-02-06
- SORSBY, WILLIAM B IA2024-09-23 active