Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WHT callsign genealogy
Currently held by PATTY, JOSEPH S
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 K4WHT's current licensee, walking backwards.
- Nelson, Justin DALgranted 2009-12-16cancelled 2012-07-10
Successor callsigns
Callsigns held now by people who previously held K4WHT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4WHT, oldest first.
- PATTY, JOSEPH S AL2005-08-30 → cancelled 2010-08-01
- Nelson, Justin D AL2022-04-28 active