| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C D C C | K0AD | 202 | 46.54 % | | 203 | 46.56 % | | 2 | C C D C | AA1K | 102 | 23.50 % | | 103 | 23.62 % | | 3 | C D C C C | C6AGU | 52 | 11.98 % | | 52 | 11.93 % | | 4 | C C D C C | AA0AW | 43 | 9.91 % | | 43 | 9.86 % | | 5 | C C D C C C | KB1EFS | 26 | 5.99 % | | 26 | 5.96 % | | 6 | C D C | D4C | 2 | 0.46 % | | 2 | 0.46 % | | 7 | C D D C | N03M | 2 | 0.46 % | | 2 | 0.46 % | | 8 | C D C C / C C D | K7BX/VP9 | 1 | 0.23 % | | 1 | 0.23 % | | 9 | C C D / C C D C C | KH6/KU1CW | 1 | 0.23 % | | 1 | 0.23 % | | 10 | C D D C C | V31MA | 1 | 0.23 % | | 1 | 0.23 % | | 11 | C D / C C D C C C | W8/UT5UDX | 1 | 0.23 % | | 1 | 0.23 % | | 12 | C D C C / D | W8KA/6 | 1 | 0.23 % | | 1 | 0.23 % | |
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