Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9DJN callsign genealogy
Currently held by Nipper, Douglas 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 K9DJN's current licensee, walking backwards.
- Nipper, Douglas JILgranted 2017-03-17cancelled 2017-12-12
Successor callsigns
Callsigns held now by people who previously held K9DJN.
No current licensee on record previously held this callsign.