OPERATORS:

           UR3EZ, UR3GU, UR4LRG, UR5AKU, UR5EFJ, UR5QW, UR5WMM, UR7CQ, UR7GO, UR7ITM,
           UR9IDX, US0HB, US6IF, US6IQ, US8ICM, US8ITC, UT1IR, UT1UY, UT1WZ, UT2IJ,
           UT2IU, UT2IV, UT3QU, UT3UA, UT4EO, UT5ECZ, UT5EL, UT5IA, UT5NM, UT7CR,
           UT7QF, UT8EU, UT8IA, UT8IO, UW1GZ, UW1HM, UW2ZM, UW5ZM, UX0FF, UX1RX, UX1UA
           UX2HO, UX2IO, UX7CQ, UY0ZG, UY1HY, UY3AW, UY5VA, UZ5ZV.

http://www.arrl.org/files/file/ContestResults/2016/2016%20IARU%20Web%20Article%20V2_01.pdf