| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AA3B | 56 | 30.11 % | | 64 | 30.48 % | | | 2 | C C D C C | AD4EB | 48 | 25.81 % | | 58 | 27.62 % | | | 3 | C C D C C C | DL1BUG | 37 | 19.89 % | | 42 | 20.00 % | | | 4 | C D C C | G5UM | 18 | 9.68 % | | 18 | 8.57 % | | | 5 | C D C C C | F5NBX | 16 | 8.60 % | | 16 | 7.62 % | | | 6 | D C D C C | 4X1VF | 3 | 1.61 % | | 4 | 1.90 % | | | 7 | C D C | G6T | 3 | 1.61 % | | 3 | 1.43 % | | | 8 | C D D C | E72U | 2 | 1.08 % | | 2 | 0.95 % | | | 9 | C D D C C | S57DX | 2 | 1.08 % | | 2 | 0.95 % | | | 10 | D C D C C C | 2E0OBO | 1 | 0.54 % | | 1 | 0.48 % | |
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