| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | HA9T | 38 | 38.78 % | | 38 | 37.25 % | | | 2 | C C D C C | EA1WH | 24 | 24.49 % | | 25 | 24.51 % | | | 3 | C C D C C C | CT1ELZ | 21 | 21.43 % | | 22 | 21.57 % | | | 4 | C D C C | F5IN | 8 | 8.16 % | | 10 | 9.80 % | | | 5 | C D D C C | S52AW | 3 | 3.06 % | | 3 | 2.94 % | | | 6 | C D D C | E74Y | 2 | 2.04 % | | 2 | 1.96 % | | | 7 | D C D C C | 4Z4DX | 1 | 1.02 % | | 1 | 0.98 % | | | 8 | C C D D D C C C C | TM100VIMY | 1 | 1.02 % | | 1 | 0.98 % | |
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