Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR0ARK callsign genealogy
Currently held by Ludwig, John 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 KR0ARK's current licensee, walking backwards.
- Ludwig, John RNVgranted 2015-03-31cancelled 2016-12-30
Successor callsigns
Callsigns held now by people who previously held KR0ARK.
No current licensee on record previously held this callsign.