Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4BDB callsign genealogy
Currently held by Grimsley II, 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 N4BDB's current licensee, walking backwards.
- Grimsley II, William BGAgranted 2024-06-28cancelled 2024-07-16
Successor callsigns
Callsigns held now by people who previously held N4BDB.
No current licensee on record previously held this callsign.