| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | DL1A | 162 | 34.99 % | | 227 | 39.82 % | | | 2 | C C D C C | CG3AT | 144 | 31.10 % | | 158 | 27.72 % | | | 3 | C C D C C C | DF1LON | 64 | 13.82 % | | 75 | 13.16 % | | | 4 | C D C C | E7DX | 42 | 9.07 % | | 54 | 9.47 % | | | 5 | C D C C C | F5ROX | 16 | 3.46 % | | 16 | 2.81 % | | | 6 | C D D C C | S51DX | 8 | 1.73 % | | 12 | 2.11 % | | | 7 | C D D C | E77W | 7 | 1.51 % | | 8 | 1.40 % | | | 8 | D C D C C | 4K6FO | 6 | 1.30 % | | 6 | 1.05 % | | | 9 | D C D C | 3Z1K | 4 | 0.86 % | | 4 | 0.70 % | | | 10 | C D C | D1A | 4 | 0.86 % | | 4 | 0.70 % | | | 11 | D C D C C C | 4U1GSC | 2 | 0.43 % | | 2 | 0.35 % | | | 12 | C / C C D C C | F/SQ6MS | 1 | 0.22 % | | 1 | 0.18 % | | | 13 | C C D / C C D C C | HB0/HB9RB | 1 | 0.22 % | | 1 | 0.18 % | | | 14 | C C D C / C | RA7C/P | 1 | 0.22 % | | 1 | 0.18 % | | | 15 | C C D / C C D C C C | HB0/DL2JRM | 1 | 0.22 % | | 1 | 0.18 % | |
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