Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6MFR callsign genealogy
Currently held by ROST, MICHAEL F
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 W6MFR's current licensee, walking backwards.
- cancelled 1998-10-05
Successor callsigns
Callsigns held now by people who previously held W6MFR.
- ROST, MICHAEL FAZgranted 2015-06-25