Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4NDH callsign genealogy
Currently held by NSGA NORTHWEST RECREATION SERVICES
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 K4NDH's current licensee, walking backwards.
- Harwood, Joe DALgranted 2019-10-25cancelled 2026-07-28
Successor callsigns
Callsigns held now by people who previously held K4NDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4NDH, oldest first.
- NSGA NORTHWEST RECREATION SERVICES VA1990-03-06 → cancelled 2002-03-07
- Harris, Norman D FL2010-07-13 → cancelled 2022-07-14
- Harwood, Joe D AL2026-07-28 active