Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN0KN callsign genealogy
Currently held by NELSON, KARL R
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 KN0KN's current licensee, walking backwards.
- Nelson, Karl RCOgranted 2015-03-11cancelled 2015-07-17
Successor callsigns
Callsigns held now by people who previously held KN0KN.
No current licensee on record previously held this callsign.