| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | DD2ML | 72 | 38.92 % | | 75 | 39.89 % | | | 2 | C C D C C C | DH2URF | 50 | 27.03 % | | 50 | 26.60 % | | | 3 | C C D C | DA0I | 33 | 17.84 % | | 33 | 17.55 % | | | 4 | C D C C C | F5VHY | 16 | 8.65 % | | 16 | 8.51 % | | | 5 | C D C C | F5CQ | 5 | 2.70 % | | 5 | 2.66 % | | | 6 | D C D C | 4O3A | 4 | 2.16 % | | 4 | 2.13 % | | | 7 | C D D C C | E77DX | 2 | 1.08 % | | 2 | 1.06 % | | | 8 | C C D D D C | EI100T | 1 | 0.54 % | | 1 | 0.53 % | | | 9 | C D D C | S53M | 1 | 0.54 % | | 1 | 0.53 % | | | 10 | C D D C C C | S57OWA | 1 | 0.54 % | | 1 | 0.53 % | |
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