Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N8SWT callsign genealogy
Currently held by SHERMAN, MARGO H
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 N8SWT's current licensee, walking backwards.
- Switalski, Matthew SMIgranted 2018-12-12cancelled 2019-02-01
Successor callsigns
Callsigns held now by people who previously held N8SWT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8SWT, oldest first.
- Switalski, Matthew S MI2019-02-01 active
- SHERMAN, MARGO H— → cancelled 1998-11-06