Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN0CK callsign genealogy
Currently held by Wittrock, Marty 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 KN0CK's current licensee, walking backwards.
- WITTROCK, MARTY JIAgranted 2000-12-05cancelled 2007-04-21
- KB6GLWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KN0CK.
No current licensee on record previously held this callsign.