Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9BLS callsign genealogy
Currently held by SPALDING, WILLIAM 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 N9BLS's current licensee, walking backwards.
- SPALDING, WILLIAM LINgranted 2003-08-05cancelled 2006-07-28
Successor callsigns
Callsigns held now by people who previously held N9BLS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9BLS, oldest first.
- GABRIELSON, GEORGE W IA1990-01-09 → cancelled 2002-03-07
- SPALDING, WILLIAM L IN2016-07-26 active