Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW1USA callsign genealogy
Currently held by NATIONAL WORLD WAR 1 MUSEUM AMATEUR RADIO CLUB
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 WW1USA's current licensee, walking backwards.
- KD0YHUcancelledNational World War 1 Museum Amateur Radio ClubMOgranted 2013-11-22cancelled 2013-12-17
Successor callsigns
Callsigns held now by people who previously held WW1USA.
No current licensee on record previously held this callsign.