Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3EUN callsign genealogy
Currently held by THARP, NELSON B
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 W3EUN's current licensee, walking backwards.
- THARP, NELSON BDEgranted 2016-02-17cancelled 2021-07-09
Successor callsigns
Callsigns held now by people who previously held W3EUN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3EUN, oldest first.
- THARP, NELSON B MD2008-08-13 → cancelled 2020-08-14
- THARP, NELSON B DE2021-07-09 active