Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DJH callsign genealogy
Currently held by Herscher, Donald 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 K4DJH's current licensee, walking backwards.
- Herscher, Donald JSCgranted 2002-01-30cancelled 2005-08-30
Successor callsigns
Callsigns held now by people who previously held K4DJH.
No current licensee on record previously held this callsign.