Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4IRK callsign genealogy
Currently held by Duggan, Douglas A
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 N4IRK's current licensee, walking backwards.
- Duggan, Douglas AVAgranted 2008-12-29cancelled 2016-01-29
Successor callsigns
Callsigns held now by people who previously held N4IRK.
No current licensee on record previously held this callsign.