| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BG0COH | 1505 | 31.80 % | | 2554 | 27.90 % | | 2 | C C D C C | AA4AK | 1358 | 28.69 % | | 2820 | 30.81 % | | 3 | C C D C | AA0O | 606 | 12.80 % | | 1609 | 17.58 % | | 4 | C D C C C | F1AGR | 543 | 11.47 % | | 770 | 8.41 % | | 5 | C D C C | B4HQ | 380 | 8.03 % | | 724 | 7.91 % | | 6 | D C D C C | 3V8SS | 52 | 1.10 % | | 109 | 1.19 % | | 7 | C D D C C | A47HQ | 45 | 0.95 % | | 112 | 1.22 % | | 8 | D C D C C C | 2E0CNL | 45 | 0.95 % | | 60 | 0.66 % | | 9 | C D D C | E70A | 35 | 0.74 % | | 76 | 0.83 % | | 10 | C D C | C4W | 20 | 0.42 % | | 60 | 0.66 % | | 11 | C C D C C C / C | DG0LHI/P | 16 | 0.34 % | | 21 | 0.23 % | | 12 | C D C C C / C | F4EEJ/P | 13 | 0.27 % | | 16 | 0.17 % | | 13 | D C D C | 3Z1K | 13 | 0.27 % | | 49 | 0.54 % | | 14 | C C D D C C C | CS25FOQ | 11 | 0.23 % | | 23 | 0.25 % | | 15 | C C D C C / C | DG6CA/P | 8 | 0.17 % | | 10 | 0.11 % | | 16 | C D D C C C | E71EEE | 7 | 0.15 % | | 14 | 0.15 % | | 17 | C C D D C C | GB19LL | 7 | 0.15 % | | 12 | 0.13 % | | 18 | C C D C C C / D | IU2KBP/1 | 7 | 0.15 % | | 8 | 0.09 % | | 19 | C C D / C C D C C | EA5/RN3AM | 6 | 0.13 % | | 9 | 0.10 % | | 20 | C C D / C C D C C C | CT7/HB9AAP | 5 | 0.11 % | | 5 | 0.05 % | | 21 | C C / C C D C C | ES/RA1AL | 5 | 0.11 % | | 5 | 0.05 % | | 22 | C C / C C D C C C | DL/PA2HBN | 4 | 0.08 % | | 6 | 0.07 % | | 23 | C C D D C | EE11Y | 4 | 0.08 % | | 13 | 0.14 % | | 24 | C C D / C D C C C | EA5/G7NFK | 3 | 0.06 % | | 3 | 0.03 % | | 25 | D C / C C D C C | 5B/RN3QO | 3 | 0.06 % | | 4 | 0.04 % | | 26 | C D C C / D | K3MD/1 | 3 | 0.06 % | | 3 | 0.03 % | | 27 | D C / C D D C C | 9A/S55OO | 2 | 0.04 % | | 5 | 0.05 % | | 28 | C / C C D C C C | F/IU0BMX | 2 | 0.04 % | | 2 | 0.02 % | | 29 | C C D / C D C C | EA5/R3AR | 2 | 0.04 % | | 5 | 0.05 % | | 30 | C C D C / D | AI0Y/9 | 2 | 0.04 % | | 3 | 0.03 % | | 31 | D C D C C C / C | 2E0PKH/P | 1 | 0.02 % | | 1 | 0.01 % | | 32 | D C D C C C C | 7L3INFD | 1 | 0.02 % | | 1 | 0.01 % | | 33 | D C D C C / C C C | 9A4OP/QRP | 1 | 0.02 % | | 4 | 0.04 % | | 34 | C C D D D D C C C | DQ1200ASP | 1 | 0.02 % | | 1 | 0.01 % | | 35 | C C D D D C C | GB100GP | 1 | 0.02 % | | 4 | 0.04 % | | 36 | C C / C D C C | EW/R1AT | 1 | 0.02 % | | 4 | 0.04 % | | 37 | C C D / C C D C | HB0/PC5A | 1 | 0.02 % | | 1 | 0.01 % | | 38 | D C / C D D C | 9A/S51Z | 1 | 0.02 % | | 2 | 0.02 % | | 39 | C D C C C / C C D | K0BBC/VY2 | 1 | 0.02 % | | 4 | 0.04 % | | 40 | C D C C C / C C C | G8IMH/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 41 | C C / C C D C | MD/WJ2O | 1 | 0.02 % | | 1 | 0.01 % | | 42 | C C / C D C C C | OH/G1UZD | 1 | 0.02 % | | 1 | 0.01 % | | 43 | C C / C D D C | ON/Z35M | 1 | 0.02 % | | 2 | 0.02 % | | 44 | C C D C D | PA4O0 | 1 | 0.02 % | | 1 | 0.01 % | | 45 | C C D C C / C C | RA0LQ/MM | 1 | 0.02 % | | 4 | 0.04 % | | 46 | C C D C C C / C D | RA2FDX/P3 | 1 | 0.02 % | | 1 | 0.01 % | | 47 | C C D C C C C | TM1MOON | 1 | 0.02 % | | 4 | 0.04 % | | 48 | C D C / D D | W0A/50 | 1 | 0.02 % | | 1 | 0.01 % | | 49 | C D C / D C | W0A/5O | 1 | 0.02 % | | 1 | 0.01 % | | 50 | C D C C / D D D | W1OP/100 | 1 | 0.02 % | | 1 | 0.01 % | | 51 | C C D C C / C C C | YU1LM/QRP | 1 | 0.02 % | | 3 | 0.03 % | |
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