Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KR4WM callsign genealogy
Currently held by Williams III, Webster D
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 KR4WM's current licensee, walking backwards.
- KD4CQKno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KR4WM.
- Williams III, Webster DSCgranted 2003-04-04cancelled 2010-05-21