Prefixes

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

Some national awards are also available.

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

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