| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C | AA3B | 293 | 43.28 % | | 462 | 45.97 % | | | 2 | C C D C C | AA1ON | 132 | 19.50 % | | 174 | 17.31 % | | | 3 | C C D C C C | CT1ESV | 122 | 18.02 % | | 145 | 14.43 % | | | 4 | C D C C | E7CW | 46 | 6.79 % | | 88 | 8.76 % | | | 5 | C D C C C | F1DHX | 23 | 3.40 % | | 32 | 3.18 % | | | 6 | C D D C | A44A | 21 | 3.10 % | | 38 | 3.78 % | | | 7 | D C D C | 3Z1K | 14 | 2.07 % | | 28 | 2.79 % | | | 8 | C D D C C | S51CK | 10 | 1.48 % | | 18 | 1.79 % | | | 9 | D C D C C | 3V8CB | 8 | 1.18 % | | 10 | 1.00 % | | | 10 | C D C | C4W | 3 | 0.44 % | | 5 | 0.50 % | | | 11 | D C D C C C | 2M0KIE | 1 | 0.15 % | | 1 | 0.10 % | | | 12 | C C D C C C / D | IK5BOH/2 | 1 | 0.15 % | | 1 | 0.10 % | | | 13 | C C D D C | OZ11A | 1 | 0.15 % | | 1 | 0.10 % | | | 14 | C C D / C C D C | IH9/OK1M | 1 | 0.15 % | | 1 | 0.10 % | | | 15 | C C D D D C C C | TC100OLD | 1 | 0.15 % | | 1 | 0.10 % | |
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