Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DJW callsign genealogy
Currently held by Warwick, David 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 K4DJW's current licensee, walking backwards.
- WARWICK, DAVID JNCgranted 1998-12-01cancelled 2003-07-15
Successor callsigns
Callsigns held now by people who previously held K4DJW.
No current licensee on record previously held this callsign.