Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6MPR callsign genealogy
Currently held by HARTKE, WILLIAM 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 W6MPR's current licensee, walking backwards.
- RADOVANCEVICH, MICHAEL PCAgranted 2007-05-09cancelled 2010-08-06
Successor callsigns
Callsigns held now by people who previously held W6MPR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6MPR, oldest first.
- HARTKE, WILLIAM M WA1996-05-14 → cancelled 2001-09-27
- RADOVANCEVICH, MICHAEL P CA2020-09-09 active