| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K4JJ | 9 | 40.91 % | | 10 | 43.48 % | | | 2 | C C D C C C | DL5RBW | 4 | 18.18 % | | 4 | 17.39 % | | | 3 | C D C | K1C | 3 | 13.64 % | | 3 | 13.04 % | | | 4 | C D C C C | K4QQG | 3 | 13.64 % | | 3 | 13.04 % | | | 5 | C C D C C | AA4RV | 2 | 9.09 % | | 2 | 8.70 % | | | 6 | C D D C C | K30MT | 1 | 4.55 % | | 1 | 4.35 % | |
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