| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | CN8KD | 54 | 30.68 % | | 54 | 30.68 % | | | 2 | C D C C | F5IN | 48 | 27.27 % | | 48 | 27.27 % | | | 3 | C C D C | CN3A | 42 | 23.86 % | | 42 | 23.86 % | | | 4 | C C D C C C | CR7AJL | 20 | 11.36 % | | 20 | 11.36 % | | | 5 | C D C C C | K4AMC | 4 | 2.27 % | | 4 | 2.27 % | | | 6 | C D D C | S53O | 3 | 1.70 % | | 3 | 1.70 % | | | 7 | D C D C C | 4X6GP | 2 | 1.14 % | | 2 | 1.14 % | | | 8 | C D C | C4Z | 1 | 0.57 % | | 1 | 0.57 % | | | 9 | C D D C C | S51RJ | 1 | 0.57 % | | 1 | 0.57 % | | | 10 | D C / C C D C C | 5B/RN3QO | 1 | 0.57 % | | 1 | 0.57 % | |
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