| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BD4UNT | 1030 | 34.36 % | | 1389 | 31.92 % | | 2 | C C D C C | AA1ON | 724 | 24.15 % | | 1044 | 23.99 % | | 3 | C C D C | AA3B | 434 | 14.48 % | | 802 | 18.43 % | | 4 | C D C C C | F1AUF | 407 | 13.58 % | | 546 | 12.55 % | | 5 | C D C C | E7AX | 149 | 4.97 % | | 190 | 4.37 % | | 6 | C D C | B1Z | 48 | 1.60 % | | 87 | 2.00 % | | 7 | C D D C C | A61QQ | 41 | 1.37 % | | 54 | 1.24 % | | 8 | D C D C C C | 2E0CNL | 35 | 1.17 % | | 43 | 0.99 % | | 9 | C D D C | A44A | 33 | 1.10 % | | 61 | 1.40 % | | 10 | D C D C C | 3B8CW | 33 | 1.10 % | | 41 | 0.94 % | | 11 | D C D C | 3Z1K | 22 | 0.73 % | | 38 | 0.87 % | | 12 | C D D C C C | E20NGF | 7 | 0.23 % | | 10 | 0.23 % | | 13 | C D C C C / C | F6CZV/P | 5 | 0.17 % | | 5 | 0.11 % | | 14 | C C D C C C / C | DL4YDT/M | 4 | 0.13 % | | 5 | 0.11 % | | 15 | C C D / C C D C C | EA6/DK5IR | 3 | 0.10 % | | 6 | 0.14 % | | 16 | C C D C C / C | DG4FT/M | 3 | 0.10 % | | 3 | 0.07 % | | 17 | C C D D C C | OL70OU | 3 | 0.10 % | | 3 | 0.07 % | | 18 | C C D D C C C | DL75OBY | 3 | 0.10 % | | 4 | 0.09 % | | 19 | C C / C C D C C | EA/DK5IR | 2 | 0.07 % | | 5 | 0.11 % | | 20 | C C D / C C D C C C | CT7/HB9AAP | 2 | 0.07 % | | 2 | 0.05 % | | 21 | C C D C C / C C C | OE5RI/QRP | 2 | 0.07 % | | 2 | 0.05 % | | 22 | C D / C D D C | E7/Z35M | 1 | 0.03 % | | 2 | 0.05 % | | 23 | C D C C C / C C C | G4ABX/QRP | 1 | 0.03 % | | 1 | 0.02 % | | 24 | D D C C | 91AP | 1 | 0.03 % | | 1 | 0.02 % | | 25 | C C / C C D C C C | FJ/SP9FIH | 1 | 0.03 % | | 1 | 0.02 % | | 26 | C C D D D C | LA100B | 1 | 0.03 % | | 3 | 0.07 % | | 27 | C C D C C C / C C C | IT9RBW/QRP | 1 | 0.03 % | | 2 | 0.05 % | | 28 | C C D C C C / D | IZ4AHI/7 | 1 | 0.03 % | | 1 | 0.02 % | | 29 | C C D D C C C C | TC60TRAC | 1 | 0.03 % | | 1 | 0.02 % | |
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