Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WX4USA callsign genealogy
Currently held by MC CLAMMA III, HAL S
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 WX4USA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WX4USA.
No current licensee on record previously held this callsign.