Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SWT callsign genealogy
Currently held by Swett, Roger M
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 W4SWT's current licensee, walking backwards.
- Swett, Roger MNCgranted 2002-07-19cancelled 2003-07-11
Successor callsigns
Callsigns held now by people who previously held W4SWT.
- Swett, Roger MNCgranted 2024-11-02