|  Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C  | DD0VS | 51 | 21.70 % |  | 55 | 20.83 % |  |  | 2 | C C D C  | EU8F | 36 | 15.32 % |  | 41 | 15.53 % |  |  | 3 | C C D C C C  | DL1NKS | 27 | 11.49 % |  | 28 | 10.61 % |  |  | 4 | C C D C / C  | DF0A/P | 25 | 10.64 % |  | 27 | 10.23 % |  |  | 5 | C C D C C / C  | DF0VK/P | 22 | 9.36 % |  | 23 | 8.71 % |  |  | 6 | C D C C  | F5IN | 21 | 8.94 % |  | 25 | 9.47 % |  |  | 7 | C C D C C C / C  | DL0ABT/P | 21 | 8.94 % |  | 27 | 10.23 % |  |  | 8 | C D C C C  | D1ITU | 8 | 3.40 % |  | 9 | 3.41 % |  |  | 9 | C D C C C / C  | D1DNR/P | 6 | 2.55 % |  | 7 | 2.65 % |  |  | 10 | C D C C / C  | R0RG/P | 4 | 1.70 % |  | 4 | 1.52 % |  |  | 11 | C D D C  | E73Y | 3 | 1.28 % |  | 3 | 1.14 % |  |  | 12 | D C D C C  | 4X4DZ | 2 | 0.85 % |  | 4 | 1.52 % |  |  | 13 | C D C / C  | M2A/P | 2 | 0.85 % |  | 2 | 0.76 % |  |  | 14 | D C D C C C  | 9M2PUL | 1 | 0.43 % |  | 1 | 0.38 % |  |  | 15 | C C / C C D C C  | OZ/DL4VM | 1 | 0.43 % |  | 1 | 0.38 % |  |  | 16 | C D C  | D1A | 1 | 0.43 % |  | 1 | 0.38 % |  |  | 17 | C D D C C C / C  | S50BCC/P | 1 | 0.43 % |  | 2 | 0.76 % |  |  | 18 | C D D C C  | S51MF | 1 | 0.43 % |  | 1 | 0.38 % |  |  | 19 | C D D C C / C  | S52GP/P | 1 | 0.43 % |  | 2 | 0.76 % |  |  | 20 | C D D C / C  | S53M/P | 1 | 0.43 % |  | 1 | 0.38 % |  |  
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