|  |  Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C C | BA0BCC | 487 | 43.17 % |  | 727 | 47.33 % |  |  | 2 | C C D C C | BA3AX | 252 | 22.34 % |  | 326 | 21.22 % |  |  | 3 | C C D C | AC6T | 235 | 20.83 % |  | 307 | 19.99 % |  |  | 4 | C D C C | E7CW | 41 | 3.63 % |  | 46 | 2.99 % |  |  | 5 | D C D C C C | 4I1EBC | 20 | 1.77 % |  | 22 | 1.43 % |  |  | 6 | C D D C | E70T | 15 | 1.33 % |  | 18 | 1.17 % |  |  | 7 | C C D C C C / D | JA2DGQ/3 | 14 | 1.24 % |  | 16 | 1.04 % |  |  | 8 | D C D C | 4D3X | 13 | 1.15 % |  | 16 | 1.04 % |  |  | 9 | C D C C C | F4EUG | 11 | 0.98 % |  | 11 | 0.72 % |  |  | 10 | C D D C C | S51KD | 10 | 0.89 % |  | 11 | 0.72 % |  |  | 11 | D C D C C | 4F3BZ | 7 | 0.62 % |  | 9 | 0.59 % |  |  | 12 | C C D D C | EI20C | 5 | 0.44 % |  | 5 | 0.33 % |  |  | 13 | C D C | D4Z | 4 | 0.35 % |  | 6 | 0.39 % |  |  | 14 | C D D C C C | E20HHK | 3 | 0.27 % |  | 4 | 0.26 % |  |  | 15 | C C D D C C C | DR10CWO | 3 | 0.27 % |  | 3 | 0.20 % |  |  | 16 | D C D C C C / D | 7K1MAG/2 | 1 | 0.09 % |  | 2 | 0.13 % |  |  | 17 | D C D / C D C C | 5Z4/G3AB | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 18 | D C D D C C C C | 8J17CALL | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 19 | C C D C C / D | LZ2OQ/1 | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 20 | C C D D D C C | OL902AC | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 21 | C C D D C C | PA40WM | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 22 | D C D C C / D | 7L1ET/1 | 1 | 0.09 % |  | 1 | 0.07 % |  |  | 23 | C C D C C C C | VK4FOMP | 1 | 0.09 % |  | 1 | 0.07 % |  | 
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