| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | CN2R | 153 | 48.42 % | | 207 | 50.24 % | | | 2 | C C D C C | CN2AA | 57 | 18.04 % | | 67 | 16.26 % | | | 3 | C C D C C C | CN8MAA | 48 | 15.19 % | | 59 | 14.32 % | | | 4 | C D D C | E74A | 18 | 5.70 % | | 22 | 5.34 % | | | 5 | C D C C | E7DX | 12 | 3.80 % | | 17 | 4.13 % | | | 6 | C D C C C | F4DPW | 12 | 3.80 % | | 12 | 2.91 % | | | 7 | D C D C | 9A1A | 7 | 2.22 % | | 16 | 3.88 % | | | 8 | C D D C C | S52OT | 5 | 1.58 % | | 6 | 1.46 % | | | 9 | D C D C C | 3V8SS | 2 | 0.63 % | | 2 | 0.49 % | | | 10 | C D C | C4A | 1 | 0.32 % | | 2 | 0.49 % | | | 11 | C D D C C C | S59ACP | 1 | 0.32 % | | 2 | 0.49 % | |
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