| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA4AEO | 1527 | 27.00 % | | 2576 | 22.27 % | | 2 | C C D C C | AA0AI | 1418 | 25.07 % | | 2747 | 23.75 % | | 3 | C C D C | AA0O | 1058 | 18.71 % | | 2483 | 21.46 % | | 4 | C D C C | D0AG | 789 | 13.95 % | | 1841 | 15.91 % | | 5 | C D C C C | C6AQQ | 515 | 9.11 % | | 909 | 7.86 % | | 6 | C D D C | A60A | 82 | 1.45 % | | 171 | 1.48 % | | 7 | D C D C C | 3B8HK | 51 | 0.90 % | | 97 | 0.84 % | | 8 | C D D C C | A41CK | 51 | 0.90 % | | 108 | 0.93 % | | 9 | C D C | B0A | 48 | 0.85 % | | 122 | 1.05 % | | 10 | D C D C | 3B8M | 42 | 0.74 % | | 111 | 0.96 % | | 11 | D C D C C C | 2E0CVN | 12 | 0.21 % | | 18 | 0.16 % | | 12 | C D D C C C | E20MWE | 8 | 0.14 % | | 14 | 0.12 % | | 13 | C C / C C D C C | DL/UX1HW | 5 | 0.09 % | | 9 | 0.08 % | | 14 | C C D / C C D C C | EA9/OH2BR | 4 | 0.07 % | | 4 | 0.03 % | | 15 | C C D C C C / D | JA4XHF/3 | 4 | 0.07 % | | 4 | 0.03 % | | 16 | C C D C C / C | OK2IW/P | 3 | 0.05 % | | 4 | 0.03 % | | 17 | C C / C C D C | DL/SM9A | 3 | 0.05 % | | 4 | 0.03 % | | 18 | C C D D C C C | OE40XTU | 2 | 0.04 % | | 2 | 0.02 % | | 19 | C C D C C / C C C | EA1GT/QRP | 2 | 0.04 % | | 5 | 0.04 % | | 20 | D C / C C D C C C | 9A/TA7AZC | 2 | 0.04 % | | 2 | 0.02 % | | 21 | C C D C / C | OU7M/P | 2 | 0.04 % | | 2 | 0.02 % | | 22 | C C D C / D | NE8O/4 | 2 | 0.04 % | | 2 | 0.02 % | | 23 | C C D C / C D | KH7X/W7 | 2 | 0.04 % | | 3 | 0.03 % | | 24 | C C D C C / D C | AC6XT/6Y | 1 | 0.02 % | | 1 | 0.01 % | | 25 | C C / C C D C C C | DL/SA3CWW | 1 | 0.02 % | | 2 | 0.02 % | | 26 | D C D D C C C | 4K50DHC | 1 | 0.02 % | | 3 | 0.03 % | | 27 | C C D / C D C C C | EA7/G4BJM | 1 | 0.02 % | | 4 | 0.03 % | | 28 | D C / C D C C C | 9A/N4XTT | 1 | 0.02 % | | 1 | 0.01 % | | 29 | D C / C C D C C | 9H/DF1DN | 1 | 0.02 % | | 1 | 0.01 % | | 30 | C C D D C C C C C | HG23TISZA | 1 | 0.02 % | | 2 | 0.02 % | | 31 | C C D / C C D C | EA5/RV2A | 1 | 0.02 % | | 3 | 0.03 % | | 32 | C D C C / C D | K5ZX/W7 | 1 | 0.02 % | | 1 | 0.01 % | | 33 | C C D C C / C D | KH6XX/W0 | 1 | 0.02 % | | 1 | 0.01 % | | 34 | C C D C C C / C | DL5AZZ/P | 1 | 0.02 % | | 1 | 0.01 % | | 35 | C D C C C / C | M0RYB/P | 1 | 0.02 % | | 6 | 0.05 % | | 36 | D C D | 9A1 | 1 | 0.02 % | | 1 | 0.01 % | | 37 | C C D C / C C D | AB2E/VP9 | 1 | 0.02 % | | 5 | 0.04 % | | 38 | C C / C D C C | OH/N7JI | 1 | 0.02 % | | 1 | 0.01 % | | 39 | D C D D C | 7O73T | 1 | 0.02 % | | 5 | 0.04 % | | 40 | C C C C D C C C | EAIT9EJP | 1 | 0.02 % | | 1 | 0.01 % | | 41 | C C D D C C | OZ30EU | 1 | 0.02 % | | 1 | 0.01 % | | 42 | C C D C / C C | RD1A/MM | 1 | 0.02 % | | 2 | 0.02 % | | 43 | C C D / C C D C C C | TA3/HB9FIH | 1 | 0.02 % | | 2 | 0.02 % | | 44 | C C D D D C C | TC100TC | 1 | 0.02 % | | 1 | 0.01 % | | 45 | C C D C C C C | TC3AKSA | 1 | 0.02 % | | 1 | 0.01 % | | 46 | C D / C C D C | W3/OL7X | 1 | 0.02 % | | 2 | 0.02 % | | 47 | C D / C C D C C C | W5/OE5OHO | 1 | 0.02 % | | 1 | 0.01 % | |
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