Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4DIU callsign genealogy
Currently held by MC NAMARA, ROGER W
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 KN4DIU's current licensee, walking backwards.
- MC NAMARA, ROGER WGAgranted 2007-07-24cancelled 2017-05-17
Successor callsigns
Callsigns held now by people who previously held KN4DIU.
No current licensee on record previously held this callsign.