| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | DD7CW | 155 | 34.60 % | | 199 | 33.50 % | | 2 | C C D C | CR5O | 130 | 29.02 % | | 191 | 32.15 % | | 3 | C C D C C C | DJ1YFK | 74 | 16.52 % | | 82 | 13.80 % | | 4 | C D D C | E70T | 25 | 5.58 % | | 38 | 6.40 % | | 5 | C D C C | E7CW | 21 | 4.69 % | | 30 | 5.05 % | | 6 | C D C C C | F4DXW | 12 | 2.68 % | | 16 | 2.69 % | | 7 | C D D C C | E74UK | 10 | 2.23 % | | 15 | 2.53 % | | 8 | D C D C C | 9A1AA | 7 | 1.56 % | | 8 | 1.35 % | | 9 | C D C | G3L | 4 | 0.89 % | | 4 | 0.67 % | | 10 | D C D C | 4U1A | 4 | 0.89 % | | 4 | 0.67 % | | 11 | D C / C D D C | 9A/S50B | 1 | 0.22 % | | 1 | 0.17 % | | 12 | D C / C D D C C | 9A/E77DX | 1 | 0.22 % | | 1 | 0.17 % | | 13 | C C / C C D C C C | CT/DL6IAK | 1 | 0.22 % | | 1 | 0.17 % | | 14 | C C D / C C D C C C | IA5/IZ2ZOT | 1 | 0.22 % | | 1 | 0.17 % | | 15 | C D D C C C | S59ABC | 1 | 0.22 % | | 2 | 0.34 % | | 16 | C C D C C / C C | UA6GO/MM | 1 | 0.22 % | | 1 | 0.17 % | |
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