| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C C C | BD7OLR | 426 | 70.76 % | | 493 | 69.34 % | | | 2 | C C D C C | BA4IT | 80 | 13.29 % | | 94 | 13.22 % | | | 3 | C C D C | AA2A | 40 | 6.64 % | | 54 | 7.59 % | | | 4 | D C D C C C | 4I1BNC | 18 | 2.99 % | | 21 | 2.95 % | | | 5 | C D C C C | F4HRM | 10 | 1.66 % | | 11 | 1.55 % | | | 6 | C C D C C C / D | JA2EPE/1 | 6 | 1.00 % | | 6 | 0.84 % | | | 7 | C D C C | R0MM | 5 | 0.83 % | | 6 | 0.84 % | | | 8 | D C D C | 4D3X | 4 | 0.66 % | | 7 | 0.98 % | | | 9 | C D D C C | E27EK | 3 | 0.50 % | | 4 | 0.56 % | | | 10 | D C D C C | 4X1IM | 2 | 0.33 % | | 2 | 0.28 % | | | 11 | C C D / C D C C C | DU6/N7MOT | 2 | 0.33 % | | 2 | 0.28 % | | | 12 | C D D C C C | E21YDP | 2 | 0.33 % | | 4 | 0.56 % | | | 13 | D C D C C C / D | 7K1MAG/2 | 1 | 0.17 % | | 1 | 0.14 % | | | 14 | C D C | E2A | 1 | 0.17 % | | 3 | 0.42 % | | | 15 | C D D C | S50W | 1 | 0.17 % | | 2 | 0.28 % | | | 16 | C C D C C C C | VK4FOMP | 1 | 0.17 % | | 1 | 0.14 % | |
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