Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA4CI callsign genealogy
Currently held by Durocher, Harold J
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 NA4CI's current licensee, walking backwards.
- Durocher, Harold JFLgranted 2024-03-05cancelled 2026-05-30
Successor callsigns
Callsigns held now by people who previously held NA4CI.
No current licensee on record previously held this callsign.