| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | DD2CW | 74 | 36.27 % | | 82 | 35.65 % | | | 2 | C C D C | AE1T | 51 | 25.00 % | | 61 | 26.52 % | | | 3 | C C D C C C | DH2URF | 44 | 21.57 % | | 49 | 21.30 % | | | 4 | C D C C | F5IN | 13 | 6.37 % | | 13 | 5.65 % | | | 5 | C D C C C | D1DNR | 6 | 2.94 % | | 7 | 3.04 % | | | 6 | C D D C C | S52AW | 5 | 2.45 % | | 7 | 3.04 % | | | 7 | C D D C | S51W | 5 | 2.45 % | | 5 | 2.17 % | | | 8 | D C D C | 9A3B | 2 | 0.98 % | | 2 | 0.87 % | | | 9 | C D D D D C | R2017M | 1 | 0.49 % | | 1 | 0.43 % | | | 10 | C D C | G6N | 1 | 0.49 % | | 1 | 0.43 % | | | 11 | D C D C C | 9A2AA | 1 | 0.49 % | | 1 | 0.43 % | | | 12 | C C D C C C / D | SV1HEM/3 | 1 | 0.49 % | | 1 | 0.43 % | |
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