| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA3LX | 807 | 33.91 % | | 1488 | 35.22 % | | 2 | C C D C C C | CS7AMH | 543 | 22.82 % | | 791 | 18.72 % | | 3 | C C D C | AA1K | 348 | 14.62 % | | 661 | 15.64 % | | 4 | C D C C | D1HQ | 282 | 11.85 % | | 427 | 10.11 % | | 5 | C D C C C | F1AGR | 165 | 6.93 % | | 239 | 5.66 % | | 6 | C D D C | E70G | 91 | 3.82 % | | 349 | 8.26 % | | 7 | C D D C C | A47RS | 26 | 1.09 % | | 50 | 1.18 % | | 8 | D C D C C | 4L7AA | 22 | 0.92 % | | 48 | 1.14 % | | 9 | C D C | G3P | 15 | 0.63 % | | 37 | 0.88 % | | 10 | D C D C | 3Z0X | 12 | 0.50 % | | 19 | 0.45 % | | 11 | C C / C D C C | DL/K1AR | 6 | 0.25 % | | 14 | 0.33 % | | 12 | D C D C C C | 2E0ECD | 6 | 0.25 % | | 8 | 0.19 % | | 13 | C C D C C / C | DJ4MM/P | 5 | 0.21 % | | 8 | 0.19 % | | 14 | C C D D D C C C | OE100CQB | 4 | 0.17 % | | 5 | 0.12 % | | 15 | C C / C C D C | DL/HG0R | 4 | 0.17 % | | 6 | 0.14 % | | 16 | C C / C C D C C C | DL/HB9DQL | 4 | 0.17 % | | 6 | 0.14 % | | 17 | C C / C C D C C | DL/OZ1AA | 3 | 0.13 % | | 9 | 0.21 % | | 18 | C C D D C C C | DB25ONN | 3 | 0.13 % | | 3 | 0.07 % | | 19 | C C / C D C C C | DL/I4VEQ | 3 | 0.13 % | | 6 | 0.14 % | | 20 | C / C C D C C | F/DF5RF | 3 | 0.13 % | | 3 | 0.07 % | | 21 | C D C C C / C | F4GKR/P | 3 | 0.13 % | | 4 | 0.09 % | | 22 | C C D C C C / C | DL2KUH/P | 2 | 0.08 % | | 3 | 0.07 % | | 23 | C C D C C / C C C | EA7TN/QRP | 2 | 0.08 % | | 4 | 0.09 % | | 24 | C C D C C / C C | RA0LQ/MM | 2 | 0.08 % | | 3 | 0.07 % | | 25 | C D D C C C | S56WYB | 2 | 0.08 % | | 3 | 0.07 % | | 26 | C C D D C | OG55W | 2 | 0.08 % | | 8 | 0.19 % | | 27 | C C D C / D | RT9T/3 | 2 | 0.08 % | | 2 | 0.05 % | | 28 | C C D C C C C | DA0WRTC | 1 | 0.04 % | | 2 | 0.05 % | | 29 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 2 | 0.05 % | | 30 | D C / C C D C C C | 9A/DL5ROB | 1 | 0.04 % | | 1 | 0.02 % | | 31 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.05 % | | 32 | D C D D D C | 3Z100K | 1 | 0.04 % | | 1 | 0.02 % | | 33 | C C D C C C / C C C | EA7AAW/QRP | 1 | 0.04 % | | 1 | 0.02 % | | 34 | C D / C C D C C | I0/YO3XX | 1 | 0.04 % | | 1 | 0.02 % | | 35 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 3 | 0.07 % | | 36 | C C D C C / D | NU1AW/9 | 1 | 0.04 % | | 3 | 0.07 % | | 37 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 2 | 0.05 % | | 38 | C C D C C C / C C | DG7LAN/MM | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C D C C / D | W1AW/4 | 1 | 0.04 % | | 1 | 0.02 % | | 40 | C D D C / C | Z35M/P | 1 | 0.04 % | | 1 | 0.02 % | |
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