| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA6PW | 235 | 28.94 % | | 239 | 29.18 % | | 2 | C C D C | AA1K | 168 | 20.69 % | | 169 | 20.63 % | | 3 | C C D C C C | CT1BOH | 146 | 17.98 % | | 147 | 17.95 % | | 4 | C D C C | E7DX | 134 | 16.50 % | | 134 | 16.36 % | | 5 | C D C C C | F1IKA | 85 | 10.47 % | | 85 | 10.38 % | | 6 | C D C | G3P | 10 | 1.23 % | | 10 | 1.22 % | | 7 | C D D C | E72U | 7 | 0.86 % | | 7 | 0.85 % | | 8 | D C D C C | 4X1ST | 6 | 0.74 % | | 6 | 0.73 % | | 9 | C D D C C | S51MF | 6 | 0.74 % | | 6 | 0.73 % | | 10 | D C D C | 9A1P | 5 | 0.62 % | | 6 | 0.73 % | | 11 | C C D / C C D C C | IS0/OM3RM | 2 | 0.25 % | | 2 | 0.24 % | | 12 | D C D C C C | 2E0CVN | 2 | 0.25 % | | 2 | 0.24 % | | 13 | C C D C C / D | AB5ZA/7 | 1 | 0.12 % | | 1 | 0.12 % | | 14 | C C / C C D C C | EA/PA5JF | 1 | 0.12 % | | 1 | 0.12 % | | 15 | C C D C / C D | KH7X/W7 | 1 | 0.12 % | | 1 | 0.12 % | | 16 | C C D / C C D C | KP4/KO1A | 1 | 0.12 % | | 1 | 0.12 % | | 17 | C C D / C D C C | KP4/K2IN | 1 | 0.12 % | | 1 | 0.12 % | | 18 | C C D D C C C | SN95PRK | 1 | 0.12 % | | 1 | 0.12 % | |
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