Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3PDR callsign genealogy
Currently held by MALSBARY, MICHAEL T
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 W3PDR's current licensee, walking backwards.
- Malsbary, Michael TPAgranted 2007-05-11cancelled 2009-10-02
Successor callsigns
Callsigns held now by people who previously held W3PDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3PDR, oldest first.
- SIMMEN, ALFRED W PA1995-09-14 → cancelled 2007-09-15
- MALSBARY, MICHAEL T PA2019-08-07 active