| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 927 | 29.86 % | | 1263 | 28.22 % | | 2 | C C D C C C | BG6GQE | 847 | 27.28 % | | 1080 | 24.13 % | | 3 | C C D C | AA1K | 620 | 19.97 % | | 1050 | 23.46 % | | 4 | C D C C | D1DX | 317 | 10.21 % | | 478 | 10.68 % | | 5 | C D C C C | C6AGU | 173 | 5.57 % | | 234 | 5.23 % | | 6 | C D D C | A44A | 46 | 1.48 % | | 81 | 1.81 % | | 7 | C D D C C | A61BK | 40 | 1.29 % | | 56 | 1.25 % | | 8 | C D C | B4T | 33 | 1.06 % | | 64 | 1.43 % | | 9 | D C D C C | 3D2AG | 32 | 1.03 % | | 62 | 1.39 % | | 10 | D C D C | 3B8M | 26 | 0.84 % | | 56 | 1.25 % | | 11 | D C D C C C | 5B4AIF | 7 | 0.23 % | | 10 | 0.22 % | | 12 | C C D / C C D C C C | EA5/DL7AFY | 4 | 0.13 % | | 4 | 0.09 % | | 13 | C C D C C C / D | IK1ZOF/3 | 3 | 0.10 % | | 4 | 0.09 % | | 14 | C C D / C C D C C | EA8/OK2GG | 3 | 0.10 % | | 3 | 0.07 % | | 15 | C C D D C C C | HB90AWS | 2 | 0.06 % | | 3 | 0.07 % | | 16 | C D C C / D | R8FF/8 | 2 | 0.06 % | | 2 | 0.04 % | | 17 | C C D / C C D C | IH9/OL3R | 2 | 0.06 % | | 3 | 0.07 % | | 18 | C C D C C / D | RZ9SZ/3 | 2 | 0.06 % | | 2 | 0.04 % | | 19 | C C D C C / C C C | UY1IF/QRP | 2 | 0.06 % | | 2 | 0.04 % | | 20 | C C D D D D C C C | DQ1200ASP | 1 | 0.03 % | | 1 | 0.02 % | | 21 | C C D D D C C C | HF100PIP | 1 | 0.03 % | | 1 | 0.02 % | | 22 | D C D D C C | 3Z50GR | 1 | 0.03 % | | 1 | 0.02 % | | 23 | D C D / C C D C C | 8R1/AG6UT | 1 | 0.03 % | | 1 | 0.02 % | | 24 | C C D C C C / C C | IU1DUB/MM | 1 | 0.03 % | | 1 | 0.02 % | | 25 | C C D D C | LX75V | 1 | 0.03 % | | 1 | 0.02 % | | 26 | C C / C D C C C | OH/M0CFW | 1 | 0.03 % | | 1 | 0.02 % | | 27 | C C / C C D C C | FS/VA3DF | 1 | 0.03 % | | 1 | 0.02 % | | 28 | D C D D D C C C | 3Z100PIP | 1 | 0.03 % | | 1 | 0.02 % | | 29 | C C D C / D | RV7B/9 | 1 | 0.03 % | | 2 | 0.04 % | | 30 | D C / C C D C C | 5B/RN3QO | 1 | 0.03 % | | 1 | 0.02 % | | 31 | C D D C C C | S57NAW | 1 | 0.03 % | | 1 | 0.02 % | | 32 | C C D D C C | SK50HD | 1 | 0.03 % | | 2 | 0.04 % | | 33 | C C D C C C / C | US7IGN/P | 1 | 0.03 % | | 1 | 0.02 % | | 34 | C C D C C / C | UX1HW/M | 1 | 0.03 % | | 1 | 0.02 % | | 35 | C D C C / C C C | R1FW/QRP | 1 | 0.03 % | | 1 | 0.02 % | | 36 | C C D C C C / C C C | YU1LMX/QRP | 1 | 0.03 % | | 1 | 0.02 % | |
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