Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WX7TWC callsign genealogy
Currently held by National Weather Service Tucson 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 WX7TWC's current licensee, walking backwards.
- KI7YQJcancelledNational Weather Service Tucson SkywarnAZgranted 2018-06-01cancelled 2018-06-26
Successor callsigns
Callsigns held now by people who previously held WX7TWC.
No current licensee on record previously held this callsign.