Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4STH callsign genealogy
Currently held by MACARTHUR JR, DOUGLAS I
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 W4STH's current licensee, walking backwards.
- MACARTHUR JR, DOUGLAS INCgranted 2017-05-22cancelled 2017-06-13
Successor callsigns
Callsigns held now by people who previously held W4STH.
No current licensee on record previously held this callsign.