Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MMR callsign genealogy
Currently held by ROSE, MARK M
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 W4MMR's current licensee, walking backwards.
- ROSE, MARK MSCgranted 2002-03-13cancelled 2004-01-23
- KD4IMPno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4MMR.
No current licensee on record previously held this callsign.