Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SWT callsign genealogy
Currently held by TWIGG, STEVEN W
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 W9SWT's current licensee, walking backwards.
- TWIGG, STEVEN WILgranted 2009-01-22cancelled 2009-02-13
Successor callsigns
Callsigns held now by people who previously held W9SWT.
No current licensee on record previously held this callsign.