Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4WPX callsign genealogy
Currently held by SIVCEVIC, MIRZA
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 W4WPX's current licensee, walking backwards.
- SIVCEVIC, MIRZACAgranted 2007-08-15cancelled 2011-12-03
Successor callsigns
Callsigns held now by people who previously held W4WPX.
No current licensee on record previously held this callsign.