Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4RK callsign genealogy
Currently held by VAN SICKLE, MARK A
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 KM4RK's current licensee, walking backwards.
- VAN SICKLE, MARK ASCgranted 2001-08-02cancelled 2006-03-03
Successor callsigns
Callsigns held now by people who previously held KM4RK.
No current licensee on record previously held this callsign.