Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1MSW callsign genealogy
Currently held by Hempstead, David C
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 KC1MSW's current licensee, walking backwards.
- Fairbanks, Sandra SMOgranted 2025-08-06cancelled 2025-08-26
Successor callsigns
Callsigns held now by people who previously held KC1MSW.
- Hempstead, David CMAgranted 2020-03-17
All historical holders
Every license row we've seen with the callsign KC1MSW, oldest first.
- Hempstead, David C MA2020-02-28 → cancelled 2020-03-17
- Fairbanks, Sandra S MO2025-08-26 active