Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0RSC callsign genealogy
Currently held by DORSCH, JOHN A
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 KD0RSC's current licensee, walking backwards.
- DORSCH, JOHN AMOgranted 2011-11-14cancelled 2012-02-22
Successor callsigns
Callsigns held now by people who previously held KD0RSC.
No current licensee on record previously held this callsign.