| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA4FCY | 1407 | 31.00 % | | 2139 | 25.39 % | | 2 | C C D C C | AB3AI | 1265 | 27.88 % | | 2440 | 28.96 % | | 3 | C C D C | AB0S | 699 | 15.40 % | | 1820 | 21.60 % | | 4 | C D C C C | F1ADG | 501 | 11.04 % | | 727 | 8.63 % | | 5 | C D C C | B4HQ | 401 | 8.84 % | | 782 | 9.28 % | | 6 | D C D C C | 3D2HQ | 43 | 0.95 % | | 86 | 1.02 % | | 7 | C D D C C | A41NN | 35 | 0.77 % | | 85 | 1.01 % | | 8 | D C D C C C | 2E0AMO | 31 | 0.68 % | | 43 | 0.51 % | | 9 | C D D C | A42K | 29 | 0.64 % | | 64 | 0.76 % | | 10 | C D C | C4W | 28 | 0.62 % | | 77 | 0.91 % | | 11 | D C D C | 3W9A | 15 | 0.33 % | | 38 | 0.45 % | | 12 | C C D C C C / C | DK9YDA/P | 9 | 0.20 % | | 10 | 0.12 % | | 13 | C D C C C / C | F1RIQ/P | 8 | 0.18 % | | 9 | 0.11 % | | 14 | C C D C C / C | DB9EV/P | 6 | 0.13 % | | 6 | 0.07 % | | 15 | C D D C C C | E20XMG | 5 | 0.11 % | | 7 | 0.08 % | | 16 | C C D / C C D C C | EA7/VE3NZ | 5 | 0.11 % | | 9 | 0.11 % | | 17 | C C / C C D C C | DO/PD1RP | 4 | 0.09 % | | 9 | 0.11 % | | 18 | C C D D C C C | DK50FFW | 4 | 0.09 % | | 4 | 0.05 % | | 19 | C C D D C C | HA50HK | 4 | 0.09 % | | 7 | 0.08 % | | 20 | C C D C C / D | NU1AW/0 | 3 | 0.07 % | | 9 | 0.11 % | | 21 | C D C C / D | N5AW/0 | 3 | 0.07 % | | 9 | 0.11 % | | 22 | C C / C C D C C C | SM/HB9ILW | 3 | 0.07 % | | 4 | 0.05 % | | 23 | C C / C C D C | FP/KV1J | 2 | 0.04 % | | 3 | 0.04 % | | 24 | C C D C C C / C C C | DG1YSF/QRP | 2 | 0.04 % | | 2 | 0.02 % | | 25 | D C / C D C C | 9A/K7GM | 1 | 0.02 % | | 2 | 0.02 % | | 26 | C C / C D C C C / C | EI/G3PXT/P | 1 | 0.02 % | | 1 | 0.01 % | | 27 | C C / C C D C C / C | EA/DL7CX/P | 1 | 0.02 % | | 1 | 0.01 % | | 28 | C C D C C / C C C | EA1GT/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 29 | C C D C C C D D | HD1QRC93 | 1 | 0.02 % | | 2 | 0.02 % | | 30 | C D / C C D C C | I5/DK3EE | 1 | 0.02 % | | 1 | 0.01 % | | 31 | C D D C D | E72K2 | 1 | 0.02 % | | 1 | 0.01 % | | 32 | C C D C / C C D | KB7G/KH6 | 1 | 0.02 % | | 1 | 0.01 % | | 33 | C C D | LZ0 | 1 | 0.02 % | | 1 | 0.01 % | | 34 | C C D / C C D C C C | HB0/DL8DXW | 1 | 0.02 % | | 1 | 0.01 % | | 35 | C D C C C / C C C | M3DAF/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 36 | C D C C / C | N2BA/M | 1 | 0.02 % | | 1 | 0.01 % | | 37 | C C D C C C / D | KB6QPI/4 | 1 | 0.02 % | | 1 | 0.01 % | | 38 | D C D C C C / C | 2W0FLW/P | 1 | 0.02 % | | 1 | 0.01 % | | 39 | C C D C / C | OR4T/P | 1 | 0.02 % | | 1 | 0.01 % | | 40 | C C D C D D | RT4G29 | 1 | 0.02 % | | 1 | 0.01 % | | 41 | C D / C D C C C | S5/M0MPM | 1 | 0.02 % | | 6 | 0.07 % | | 42 | C D / C C C C C | S5/MOMPM | 1 | 0.02 % | | 1 | 0.01 % | | 43 | C D D D C C C | S570CST | 1 | 0.02 % | | 3 | 0.04 % | | 44 | C D D D C C | S570CT | 1 | 0.02 % | | 1 | 0.01 % | | 45 | C C D C / D | SH0T/6 | 1 | 0.02 % | | 1 | 0.01 % | | 46 | C / C C D C C C | M/EA5IYL | 1 | 0.02 % | | 1 | 0.01 % | | 47 | C C / C D D C C | TK/S55OO | 1 | 0.02 % | | 1 | 0.01 % | | 48 | C C D D D D C | TM2024P | 1 | 0.02 % | | 2 | 0.02 % | | 49 | C C D C C C C | TM6SKCC | 1 | 0.02 % | | 1 | 0.01 % | | 50 | C D C C / C D | W1AW/P4 | 1 | 0.02 % | | 1 | 0.01 % | |
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