Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MFC callsign genealogy
Currently held by Lockheed Martin Amateur Radio Association
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 W4MFC's current licensee, walking backwards.
- KJ4FIMcancelledLockheed Martin Amateur Radio AssociationFLgranted 2008-07-22cancelled 2008-09-03
Successor callsigns
Callsigns held now by people who previously held W4MFC.
No current licensee on record previously held this callsign.