Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SXR callsign genealogy
Currently held by VAN RIPER, MAX H
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 K0SXR's current licensee, walking backwards.
- VAN RIPER, MAX HMNgranted 2001-09-14cancelled 2007-11-27
Successor callsigns
Callsigns held now by people who previously held K0SXR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0SXR, oldest first.
- Lueck, John H MN2005-01-06 → cancelled 2006-10-10
- VAN RIPER, MAX H MN2017-09-28 active