| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | EA1WH | 50 | 39.68 % | | 51 | 39.53 % | | | 2 | C C D C | EU8U | 32 | 25.40 % | | 34 | 26.36 % | | | 3 | C C D C C C | EA4AOC | 22 | 17.46 % | | 22 | 17.05 % | | | 4 | C D C C | K1SM | 13 | 10.32 % | | 13 | 10.08 % | | | 5 | C D C C C | F5NLX | 3 | 2.38 % | | 3 | 2.33 % | | | 6 | C D D C C | S52AW | 2 | 1.59 % | | 2 | 1.55 % | | | 7 | D C D C C | 4X4DZ | 2 | 1.59 % | | 2 | 1.55 % | | | 8 | D C / C C D C C | 5B/RN3QO | 1 | 0.79 % | | 1 | 0.78 % | | | 9 | D C D C | 4L8A | 1 | 0.79 % | | 1 | 0.78 % | |
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