Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KC1CS callsign genealogy
Currently held by SHEEHAN, JAMES F
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 KC1CS's current licensee, walking backwards.
- SHEEHAN, JAMES FMEgranted 2002-02-21cancelled 2002-11-02
Successor callsigns
Callsigns held now by people who previously held KC1CS.
- SHEEHAN, JAMES FMEgranted 2002-02-21cancelled 2002-11-02