Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1ORP callsign genealogy
Currently held by Sisko, Doug J
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 KC1ORP's current licensee, walking backwards.
- Sisko, Doug JMEgranted 2020-10-23cancelled 2021-02-17
Successor callsigns
Callsigns held now by people who previously held KC1ORP.
No current licensee on record previously held this callsign.