| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0HA | 27 | 36.49 % | | 27 | 36.49 % | | | 2 | C C D C C | DK3GI | 15 | 20.27 % | | 15 | 20.27 % | | | 3 | C C D C | KD0S | 15 | 20.27 % | | 15 | 20.27 % | | | 4 | C C D C C C | LU3DAT | 10 | 13.51 % | | 10 | 13.51 % | | | 5 | C D C C C | A6HBD | 6 | 8.11 % | | 6 | 8.11 % | | | 6 | D C D C C | 9H1XT | 1 | 1.35 % | | 1 | 1.35 % | |
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