Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0NSX callsign genealogy
Currently held by Krueger, John 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 W0NSX's current licensee, walking backwards.
- Krueger, John JMOgranted 2015-02-24cancelled 2020-04-14
Successor callsigns
Callsigns held now by people who previously held W0NSX.
No current licensee on record previously held this callsign.