Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7BU callsign genealogy
Currently held by WALKER, BARTON L
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 N7BU's current licensee, walking backwards.
- Shaddick, Roger AGAgranted 2007-02-06cancelled 2008-02-12
Successor callsigns
Callsigns held now by people who previously held N7BU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7BU, oldest first.
- WALKER, BARTON L WA1996-01-19 → cancelled 2008-01-23
- SHADDICK, ROGER A GA2017-11-17 active