Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MAS callsign genealogy
Currently held by Wood, David R
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 K1MAS's current licensee, walking backwards.
- Sprowl, Mitchell AAZgranted 2014-09-10cancelled 2019-02-12
Successor callsigns
Callsigns held now by people who previously held K1MAS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1MAS, oldest first.
- Wood, David R NH2008-05-06 → cancelled 2016-11-24
- Sprowl, Mitchell A CO2019-02-12 active