Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4NHP callsign genealogy
Currently held by CROUSE JR, WILLIAM
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 WD4NHP's current licensee, walking backwards.
- THOMPSON, JOSHUA JTNgranted 2014-02-24cancelled 2014-03-29
Successor callsigns
Callsigns held now by people who previously held WD4NHP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4NHP, oldest first.
- CROUSE JR, WILLIAM TN2003-12-03 → cancelled 2012-04-06
- THOMPSON, JOSHUA J TN2024-06-05 active