|  |  Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C C | CT1BXT | 38 | 36.19 % |  | 38 | 35.85 % |  |  | 2 | C C D C C | CN8KD | 34 | 32.38 % |  | 35 | 33.02 % |  |  | 3 | C C D C | EA1B | 23 | 21.90 % |  | 23 | 21.70 % |  |  | 4 | C D C C C | F4CVQ | 4 | 3.81 % |  | 4 | 3.77 % |  |  | 5 | C D C C | N2WK | 3 | 2.86 % |  | 3 | 2.83 % |  |  | 6 | D C D C C C | 5B4AMM | 1 | 0.95 % |  | 1 | 0.94 % |  |  | 7 | D C D C | 4L8A | 1 | 0.95 % |  | 1 | 0.94 % |  |  | 8 | C C D D C | OG66X | 1 | 0.95 % |  | 1 | 0.94 % |  | 
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