| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | CA4PSH | 706 | 25.93 % | | 810 | 24.09 % | | 2 | C C D C C | AA1SU | 646 | 23.72 % | | 805 | 23.94 % | | 3 | C C D C | AA1K | 545 | 20.01 % | | 745 | 22.15 % | | 4 | C D C C C | F1ADG | 448 | 16.45 % | | 524 | 15.58 % | | 5 | C D C C | G8DX | 272 | 9.99 % | | 351 | 10.44 % | | 6 | C D D C C | A61QQ | 20 | 0.73 % | | 25 | 0.74 % | | 7 | D C D C | 3E3E | 14 | 0.51 % | | 18 | 0.54 % | | 8 | C D D C | E76C | 13 | 0.48 % | | 20 | 0.59 % | | 9 | C D C | C4W | 13 | 0.48 % | | 13 | 0.39 % | | 10 | D C D C C | 4X1IM | 11 | 0.40 % | | 11 | 0.33 % | | 11 | C C D D C | EI20C | 5 | 0.18 % | | 8 | 0.24 % | | 12 | D C D C C C | 2E0LSB | 4 | 0.15 % | | 4 | 0.12 % | | 13 | C C D / C D C C | HR5/F2JD | 3 | 0.11 % | | 3 | 0.09 % | | 14 | C C D D C C | OZ30EU | 2 | 0.07 % | | 2 | 0.06 % | | 15 | C C D C C / C | AD5SJ/M | 2 | 0.07 % | | 2 | 0.06 % | | 16 | C C D D C C C | DL30GER | 2 | 0.07 % | | 2 | 0.06 % | | 17 | C C D C C / C D | KH6HU/W7 | 2 | 0.07 % | | 2 | 0.06 % | | 18 | C C D C / D | AI0Y/9 | 1 | 0.04 % | | 1 | 0.03 % | | 19 | D C D D C C C | 3Z50DQP | 1 | 0.04 % | | 1 | 0.03 % | | 20 | D C D / C D C C | 5Z4/G3AB | 1 | 0.04 % | | 1 | 0.03 % | | 21 | C D C C C / D | K9IDA/1 | 1 | 0.04 % | | 1 | 0.03 % | | 22 | D C D D C | 4A60A | 1 | 0.04 % | | 3 | 0.09 % | | 23 | C C / C D D C | LZ/Z36W | 1 | 0.04 % | | 1 | 0.03 % | | 24 | C D C C C / C | M0PLX/M | 1 | 0.04 % | | 2 | 0.06 % | | 25 | C C D / C C D C C | OA4/XQ3SA | 1 | 0.04 % | | 1 | 0.03 % | | 26 | C C D D D C C C | OL725PLZ | 1 | 0.04 % | | 1 | 0.03 % | | 27 | C C D C / C D | AL6U/W7 | 1 | 0.04 % | | 1 | 0.03 % | | 28 | C D D D D C | S5400J | 1 | 0.04 % | | 1 | 0.03 % | | 29 | C D D C C C | S56WYB | 1 | 0.04 % | | 1 | 0.03 % | | 30 | C C D D C C C C | SN95IARU | 1 | 0.04 % | | 1 | 0.03 % | | 31 | C C D C C C C | VK2FSAV | 1 | 0.04 % | | 1 | 0.03 % | | 32 | C C D C C / D | WE4BY/6 | 1 | 0.04 % | | 1 | 0.03 % | |
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