Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7NWS callsign genealogy
Currently held by NATIONAL WEATHER SERVICE BILLINGS MT SKYWARN
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 W7NWS's current licensee, walking backwards.
- KD7JDOcancelledNATIONAL WEATHER SERVICE BILLINGS MT SKYWARNMTgranted 2000-05-26cancelled 2000-08-15
Successor callsigns
Callsigns held now by people who previously held W7NWS.
No current licensee on record previously held this callsign.