| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | DK3WM | 23 | 35.94 % | | 23 | 34.85 % | | | 2 | C C D C | ES9C | 16 | 25.00 % | | 17 | 25.76 % | | | 3 | C C D C C C | CT1DRB | 11 | 17.19 % | | 12 | 18.18 % | | | 4 | C D C C | F5IN | 9 | 14.06 % | | 9 | 13.64 % | | | 5 | C D D C C | S52AW | 2 | 3.13 % | | 2 | 3.03 % | | | 6 | C D C | M4J | 1 | 1.56 % | | 1 | 1.52 % | | | 7 | D C D C | 4U1A | 1 | 1.56 % | | 1 | 1.52 % | | | 8 | C D D C | S56A | 1 | 1.56 % | | 1 | 1.52 % | |
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