Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0BTW callsign genealogy
Currently held by BROWN, MARY A
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 KD0BTW's current licensee, walking backwards.
- BROWN, MARK AMNgranted 2004-10-27cancelled 2007-10-16
Successor callsigns
Callsigns held now by people who previously held KD0BTW.
- BROWN, MARY AMNgranted 2018-05-18