Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3HDR callsign genealogy
Currently held by THOMPSON III, CARL W
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 N3HDR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N3HDR.
- THOMPSON III, CARL WDEgranted 2010-07-16cancelled 2022-07-19