| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA0AW | 822 | 24.39 % | | 1248 | 22.79 % | | 2 | C C D C | AA1K | 775 | 23.00 % | | 1484 | 27.10 % | | 3 | C C D C C C | BD2WOH | 771 | 22.88 % | | 1008 | 18.41 % | | 4 | C D C C | D4DX | 517 | 15.34 % | | 948 | 17.31 % | | 5 | C D C C C | C6AQQ | 261 | 7.74 % | | 380 | 6.94 % | | 6 | C D D C | A60A | 44 | 1.31 % | | 66 | 1.21 % | | 7 | C D C | B0A | 43 | 1.28 % | | 72 | 1.31 % | | 8 | D C D C C | 3B9KW | 37 | 1.10 % | | 55 | 1.00 % | | 9 | D C D C | 3B8M | 31 | 0.92 % | | 66 | 1.21 % | | 10 | C D D C C | A71WW | 23 | 0.68 % | | 32 | 0.58 % | | 11 | D C D C C C | 2E0CVN | 11 | 0.33 % | | 16 | 0.29 % | | 12 | C C D / C C D C C | CT7/VA3FH | 5 | 0.15 % | | 6 | 0.11 % | | 13 | C D D C C C | E20HHK | 5 | 0.15 % | | 9 | 0.16 % | | 14 | C C D D C C C | HA60FIR | 3 | 0.09 % | | 3 | 0.05 % | | 15 | C C D C C C / D | IK5BOH/2 | 3 | 0.09 % | | 3 | 0.05 % | | 16 | C C / C C D C C | EA/PA5JF | 2 | 0.06 % | | 2 | 0.04 % | | 17 | C D D D C C C | S570CST | 2 | 0.06 % | | 5 | 0.09 % | | 18 | C C D D C C C C | DM70DXMB | 1 | 0.03 % | | 2 | 0.04 % | | 19 | C C D D C C C C C | DL60RRDXA | 1 | 0.03 % | | 1 | 0.02 % | | 20 | C C / C C D C C C | FM/VE3RSA | 1 | 0.03 % | | 1 | 0.02 % | | 21 | D C D / C C D C C | 8R1/AG6UT | 1 | 0.03 % | | 1 | 0.02 % | | 22 | C C D / C D D C C | IS0/E73DX | 1 | 0.03 % | | 6 | 0.11 % | | 23 | C C D / D C D C C | KH0/4Z5LA | 1 | 0.03 % | | 1 | 0.02 % | | 24 | C C D C / C D | KH7X/W7 | 1 | 0.03 % | | 1 | 0.02 % | | 25 | C D C C C / D | R0QAW/9 | 1 | 0.03 % | | 1 | 0.02 % | | 26 | C D C C / D | R1IE/1 | 1 | 0.03 % | | 1 | 0.02 % | | 27 | C C D / C C D C | CT8/PA4O | 1 | 0.03 % | | 4 | 0.07 % | | 28 | C C D / C D C C | TI8/N7ZG | 1 | 0.03 % | | 3 | 0.05 % | | 29 | C C D C / C C D C | VP2V/AA7V | 1 | 0.03 % | | 1 | 0.02 % | | 30 | C D / C C D C | W3/OL7X | 1 | 0.03 % | | 1 | 0.02 % | | 31 | C C D C C / C C C | YU1LM/QRP | 1 | 0.03 % | | 2 | 0.04 % | | 32 | C C / C C D C | ZA/OG1N | 1 | 0.03 % | | 1 | 0.02 % | |
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