Prefixes

The original prefixes award (WPX) is administered by CQ Magazine.

Some national awards are also available.

LY WPX Trophy (Lithuania)
WPX Award (USA)
PX Indonesia
California Prefix Award (USA)
Worked Slovenia Prefixes (Slovenia)
Worked Croatian Amateur Radio Prefixes (Croatia)

Please note that the awards listed above are just examples of my collection of nearly 3,000 certificates