| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0CN | 98 | 31.51 % | | 157 | 34.28 % | | | 2 | C C D C | AA3B | 77 | 24.76 % | | 119 | 25.98 % | | | 3 | C C D C C | AA0FO | 48 | 15.43 % | | 70 | 15.28 % | | | 4 | C D C C C | F1RHS | 43 | 13.83 % | | 55 | 12.01 % | | | 5 | C C D C C C | IC8SQS | 39 | 12.54 % | | 47 | 10.26 % | | | 6 | D C D C | 6D5C | 3 | 0.96 % | | 3 | 0.66 % | | | 7 | C D D C | P49X | 2 | 0.64 % | | 6 | 1.31 % | | | 8 | C D C | D4Z | 1 | 0.32 % | | 1 | 0.22 % | |
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