Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6BTO callsign genealogy
Currently held by LA GRANGE, SHAWN C
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 N6BTO's current licensee, walking backwards.
- LA GRANGE, SHAWN CCAgranted 2007-02-28cancelled 2015-11-17
Successor callsigns
Callsigns held now by people who previously held N6BTO.
- LA GRANGE, SHAWN CCAgranted 2026-07-07
All historical holders
Every license row we've seen with the callsign N6BTO, oldest first.
- RIZZI SR, JAMES A CA1994-07-08 → cancelled 2006-07-11
- LA GRANGE, SHAWN C CA2015-11-17 → cancelled 2016-04-29