| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | DB2HG | 33 | 29.73 % | | 34 | 30.36 % | | 2 | C C D C C C | DJ2KUA | 33 | 29.73 % | | 33 | 29.46 % | | 3 | C D C C C | G0FGI | 17 | 15.32 % | | 17 | 15.18 % | | 4 | C C D C | EB5F | 15 | 13.51 % | | 15 | 13.39 % | | 5 | C D C C | R3KF | 5 | 4.50 % | | 5 | 4.46 % | | 6 | D C D C C | 4X1ST | 2 | 1.80 % | | 2 | 1.79 % | | 7 | C D C | G6C | 2 | 1.80 % | | 2 | 1.79 % | | 8 | D C D C | 9A5Y | 1 | 0.90 % | | 1 | 0.89 % | | 9 | C C / C C D C | ON/SO2U | 1 | 0.90 % | | 1 | 0.89 % | | 10 | C C D / C C D C C C | EA5/PA3GCU | 1 | 0.90 % | | 1 | 0.89 % | | 11 | C D D C C | S57WO | 1 | 0.90 % | | 1 | 0.89 % | |
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