| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | CQ3HQ | 56 | 35.90 % | | 97 | 43.50 % | | | 2 | C C D C | CR2X | 43 | 27.56 % | | 53 | 23.77 % | | | 3 | C D D C | S51C | 21 | 13.46 % | | 27 | 12.11 % | | | 4 | C C D C C C | DL1REM | 13 | 8.33 % | | 16 | 7.17 % | | | 5 | C D D C C | A41NN | 5 | 3.21 % | | 8 | 3.59 % | | | 6 | C D C C | E7CW | 5 | 3.21 % | | 6 | 2.69 % | | | 7 | C D C C C | F5TRO | 4 | 2.56 % | | 4 | 1.79 % | | | 8 | D C D C C | 3V8CB | 3 | 1.92 % | | 6 | 2.69 % | | | 9 | C C D D C C | LM90HQ | 2 | 1.28 % | | 2 | 0.90 % | | | 10 | D C D C | 3Z5A | 2 | 1.28 % | | 2 | 0.90 % | | | 11 | C D D C C C | R18SRB | 1 | 0.64 % | | 1 | 0.45 % | | | 12 | C D C C C / C | F4GKR/P | 1 | 0.64 % | | 1 | 0.45 % | |
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