Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI4MM callsign genealogy
Currently held by MURRAY, 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 WI4MM's current licensee, walking backwards.
- Murray, Mark DVAgranted 2011-05-23cancelled 2016-06-25
Successor callsigns
Callsigns held now by people who previously held WI4MM.
No current licensee on record previously held this callsign.