Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SDC callsign genealogy
Currently held by CIOTTI, STEVEN D
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 K0SDC's current licensee, walking backwards.
- CIOTTI, STEVEN DCOgranted 2004-11-18cancelled 2004-12-21
Successor callsigns
Callsigns held now by people who previously held K0SDC.
No current licensee on record previously held this callsign.