Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE1CO callsign genealogy
Currently held by SEFCIK, JOSEPH G
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 KE1CO's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KE1CO.
- SEFCIK, JOSEPH GCTgranted 1999-02-26cancelled 2011-03-01