Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9MDA callsign genealogy
Currently held by ANDERSON, MARK D
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 W9MDA's current licensee, walking backwards.
- ANDERSON, MARK DWIgranted 2000-09-12cancelled 2006-01-10
- WB9EZWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W9MDA.
No current licensee on record previously held this callsign.