| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C C | CN2AA | 148 | 35.15 % | | 150 | 35.05 % | | | 2 | C C D C | CS2C | 114 | 27.08 % | | 116 | 27.10 % | | | 3 | C C D C C C | DF1LON | 91 | 21.62 % | | 92 | 21.50 % | | | 4 | C D C C C | F5VBT | 17 | 4.04 % | | 18 | 4.21 % | | | 5 | C D D C | E74R | 16 | 3.80 % | | 16 | 3.74 % | | | 6 | C D C C | F5II | 11 | 2.61 % | | 11 | 2.57 % | | | 7 | C D C | G2X | 8 | 1.90 % | | 9 | 2.10 % | | | 8 | C D D C C | S51DX | 5 | 1.19 % | | 5 | 1.17 % | | | 9 | D C D C | 9A3B | 3 | 0.71 % | | 3 | 0.70 % | | | 10 | D C D C C | 8S0DX | 3 | 0.71 % | | 3 | 0.70 % | | | 11 | C C D C C C C | DF0WRTC | 1 | 0.24 % | | 1 | 0.23 % | | | 12 | C C D / C C D C C | HB0/DL5SE | 1 | 0.24 % | | 1 | 0.23 % | | | 13 | C C D D C C C C | HG17EYOF | 1 | 0.24 % | | 1 | 0.23 % | | | 14 | C / C D C C C | F/G4BJM | 1 | 0.24 % | | 1 | 0.23 % | | | 15 | C D D C C C | S57NAW | 1 | 0.24 % | | 1 | 0.23 % | |
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