Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4MCD callsign genealogy
Currently held by KIRBY, BARBARA J
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 WA4MCD's current licensee, walking backwards.
- Davis, Mark CFLgranted 2006-08-17cancelled 2006-09-06
Successor callsigns
Callsigns held now by people who previously held WA4MCD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4MCD, oldest first.
- KIRBY, BARBARA J VA1992-03-24 → cancelled 2004-03-25
- Davis, Mark C MI2016-08-05 active