| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | E3SGB | 579 | 37.00 % | | 688 | 34.42 % | | | 2 | C C D C C C | CR7BPG | 322 | 20.58 % | | 350 | 17.51 % | | | 3 | C D C C | K0GR | 310 | 19.81 % | | 406 | 20.31 % | | | 4 | C C D C C | AA0RW | 185 | 11.82 % | | 208 | 10.41 % | | | 5 | C C D C | AA3B | 107 | 6.84 % | | 120 | 6.00 % | | | 6 | C D C | K0K | 56 | 3.58 % | | 78 | 3.90 % | | | 7 | C C D | JS8 | 1 | 0.06 % | | 1 | 0.05 % | | | 8 | C D C C D C | K8GE3A | 1 | 0.06 % | | 1 | 0.05 % | | | 9 | C D C C C D C | N4TUN2A | 1 | 0.06 % | | 1 | 0.05 % | | | 10 | C C D C C / D | NA1ME/2 | 1 | 0.06 % | | 1 | 0.05 % | | | 11 | C D C C C C C | W4CRVTN | 1 | 0.06 % | | 1 | 0.05 % | | | 12 | C D C C / D | W9MS/2 | 1 | 0.06 % | | 1 | 0.05 % | |
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