| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | EA4GVT | 47 | 35.61 % | | 47 | 34.56 % | | | 2 | C D C C C | K0ING | 44 | 33.33 % | | 44 | 32.35 % | | | 3 | C D C C | K1BZ | 19 | 14.39 % | | 19 | 13.97 % | | | 4 | C C D C C | AC1RH | 11 | 8.33 % | | 11 | 8.09 % | | | 5 | C C D C | AA3R | 9 | 6.82 % | | 9 | 6.62 % | | | 6 | C D D C C C | C93JRH | 2 | 1.52 % | | 2 | 1.47 % | |
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