| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | CP4BT | 146 | 38.73 % | | 196 | 37.12 % | | | 2 | C C D C C C | CR7ACS | 93 | 24.67 % | | 128 | 24.24 % | | | 3 | C C D C | EU5M | 75 | 19.89 % | | 120 | 22.73 % | | | 4 | C D C C | K1AR | 35 | 9.28 % | | 51 | 9.66 % | | | 5 | C D C C C | F5NBX | 7 | 1.86 % | | 8 | 1.52 % | | | 6 | D C D C C | 4Z4DX | 6 | 1.59 % | | 9 | 1.70 % | | | 7 | C D D C | E72U | 4 | 1.06 % | | 5 | 0.95 % | | | 8 | D C D C | 3Z5W | 3 | 0.80 % | | 3 | 0.57 % | | | 9 | C D D C C | S51NP | 3 | 0.80 % | | 3 | 0.57 % | | | 10 | C C D C C / C C C | EA1GT/QRP | 1 | 0.27 % | | 1 | 0.19 % | | | 11 | C D C | K1T | 1 | 0.27 % | | 1 | 0.19 % | | | 12 | C D D C C C | E73ECJ | 1 | 0.27 % | | 1 | 0.19 % | | | 13 | C D C C / D | W9OA/9 | 1 | 0.27 % | | 1 | 0.19 % | | | 14 | C C / C D D C | YU/S56A | 1 | 0.27 % | | 1 | 0.19 % | |
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