Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO5EMS callsign genealogy
Currently held by Drucker, Neil
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 KO5EMS's current licensee, walking backwards.
- Drucker, NeilOKgranted 2019-03-19cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held KO5EMS.
No current licensee on record previously held this callsign.