Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MCD callsign genealogy
Currently held by Doo, Michael 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 W3MCD's current licensee, walking backwards.
- Doo, Michael CNYgranted 2010-04-29cancelled 2010-10-30
Successor callsigns
Callsigns held now by people who previously held W3MCD.
- Doo, Michael CPAgranted 2024-07-30