Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4MD callsign genealogy
Currently held by Douglas, Andrew S
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 KW4MD's current licensee, walking backwards.
- Douglas, Andrew SFLgranted 2015-07-31cancelled 2015-08-14
Successor callsigns
Callsigns held now by people who previously held KW4MD.
No current licensee on record previously held this callsign.