Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KE5OSN callsign genealogy
Currently held by CEMENT EMERGENCY MANAGEMENT
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 KE5OSN'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 KE5OSN.
- N5CEMexpiredCEMENT EMERGENCY MANAGEMENTOKgranted 2007-06-26cancelled 2019-06-27