| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA5AU | 220 | 30.05 % | | 238 | 28.07 % | | 2 | C C D C C C | BD7JNA | 163 | 22.27 % | | 186 | 21.93 % | | 3 | C D C C | F2GL | 125 | 17.08 % | | 157 | 18.51 % | | 4 | C C D C | AA2A | 109 | 14.89 % | | 129 | 15.21 % | | 5 | C D C C C | F5IDJ | 72 | 9.84 % | | 85 | 10.02 % | | 6 | C D D C C | E29AU | 9 | 1.23 % | | 10 | 1.18 % | | 7 | D C D C | 4D0B | 5 | 0.68 % | | 8 | 0.94 % | | 8 | D C D C C C | 6K2FDL | 4 | 0.55 % | | 4 | 0.47 % | | 9 | D C D C C | 4F3OM | 4 | 0.55 % | | 4 | 0.47 % | | 10 | C D D C | E74X | 4 | 0.55 % | | 4 | 0.47 % | | 11 | C D D C C C | E20HHK | 3 | 0.41 % | | 3 | 0.35 % | | 12 | C D C | E2A | 2 | 0.27 % | | 4 | 0.47 % | | 13 | C C D D C | OG55W | 2 | 0.27 % | | 2 | 0.24 % | | 14 | C D / C D D C | I0/S53R | 1 | 0.14 % | | 1 | 0.12 % | | 15 | C C D D C C C C | GB18FIFA | 1 | 0.14 % | | 1 | 0.12 % | | 16 | C C D D D C C C | OE100AKD | 1 | 0.14 % | | 1 | 0.12 % | | 17 | C C D C / C C D | KH0R/KH2 | 1 | 0.14 % | | 4 | 0.47 % | | 18 | C C D C C / D | RW4YA/9 | 1 | 0.14 % | | 2 | 0.24 % | | 19 | C C D C C C C C C | SN0UNESCO | 1 | 0.14 % | | 1 | 0.12 % | | 20 | C C D / C C D C C | SV2/RW3AL | 1 | 0.14 % | | 1 | 0.12 % | | 21 | C C D C C / C | UA1ZZ/P | 1 | 0.14 % | | 1 | 0.12 % | | 22 | C C D D C C | VR20EH | 1 | 0.14 % | | 1 | 0.12 % | | 23 | C C D C C / C C C | YU1LM/QRP | 1 | 0.14 % | | 1 | 0.12 % | |
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