Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WDM callsign genealogy
Currently held by Richardson, James E
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 K4WDM's current licensee, walking backwards.
- Richardson, James EVAgranted 1999-03-08cancelled 2004-12-14
Successor callsigns
Callsigns held now by people who previously held K4WDM.
No current licensee on record previously held this callsign.