Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0RS callsign genealogy
Currently held by BLUTHARDT, DOUGLAS 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 AC0RS's current licensee, walking backwards.
- BLUTHARDT, DOUGLAS LKSgranted 2009-05-11cancelled 2010-03-23
Successor callsigns
Callsigns held now by people who previously held AC0RS.
No current licensee on record previously held this callsign.