| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BD3PXM | 1698 | 31.98 % | | 3332 | 28.25 % | | 2 | C C D C C | AA0AI | 1595 | 30.04 % | | 3827 | 32.45 % | | 3 | C C D C | AA3S | 637 | 12.00 % | | 2053 | 17.41 % | | 4 | C D C C C | F1GRH | 524 | 9.87 % | | 760 | 6.44 % | | 5 | C D C C | B9HQ | 443 | 8.34 % | | 854 | 7.24 % | | 6 | C D D C C | A31MM | 72 | 1.36 % | | 217 | 1.84 % | | 7 | D C D C C | 4L0HQ | 71 | 1.34 % | | 181 | 1.53 % | | 8 | D C D C C C | 2E0AAN | 45 | 0.85 % | | 71 | 0.60 % | | 9 | C D D C | E70A | 31 | 0.58 % | | 97 | 0.82 % | | 10 | D C D C | 3Z1K | 21 | 0.40 % | | 52 | 0.44 % | | 11 | C D C | G0T | 17 | 0.32 % | | 48 | 0.41 % | | 12 | C D D C C C | E20NGF | 17 | 0.32 % | | 40 | 0.34 % | | 13 | C C D C C / C | DC0HD/M | 15 | 0.28 % | | 24 | 0.20 % | | 14 | C C D C C C / C | CS7AIN/M | 12 | 0.23 % | | 23 | 0.20 % | | 15 | C C D C C C / D | IZ1DLY/1 | 8 | 0.15 % | | 9 | 0.08 % | | 16 | C C / C C D C C C | IK/DL8OBF | 8 | 0.15 % | | 13 | 0.11 % | | 17 | C C D C C C / C C C | BG4GOV/QRP | 8 | 0.15 % | | 12 | 0.10 % | | 18 | C C D C C / D | LU1AW/6 | 7 | 0.13 % | | 12 | 0.10 % | | 19 | C D C C C / C | F4FVW/P | 6 | 0.11 % | | 6 | 0.05 % | | 20 | C C D D C C | ES17EU | 5 | 0.09 % | | 17 | 0.14 % | | 21 | C C D D D C | EV950O | 4 | 0.08 % | | 10 | 0.08 % | | 22 | C C / C C D C C | OE/DJ0FR | 4 | 0.08 % | | 4 | 0.03 % | | 23 | C C D C / D | KW6J/7 | 4 | 0.08 % | | 16 | 0.14 % | | 24 | C C D / C C D C C C | EA1/HB9AFH | 4 | 0.08 % | | 4 | 0.03 % | | 25 | C C D / C C D C C | EA5/DK5IM | 4 | 0.08 % | | 13 | 0.11 % | | 26 | C C D D C C C | HA60KNA | 3 | 0.06 % | | 3 | 0.03 % | | 27 | C C / C C D C | FP/KV1J | 3 | 0.06 % | | 3 | 0.03 % | | 28 | C D C C / D | R9PA/4 | 3 | 0.06 % | | 9 | 0.08 % | | 29 | C C D D D C C | LY764KM | 3 | 0.06 % | | 17 | 0.14 % | | 30 | C C D D C | OG55W | 3 | 0.06 % | | 13 | 0.11 % | | 31 | C D C C C / C C C | M0GIR/QRP | 2 | 0.04 % | | 2 | 0.02 % | | 32 | C C D / C D C C C | SV9/M0NPT | 2 | 0.04 % | | 2 | 0.02 % | | 33 | C C / C C D C C C / C | DL/OK1DOY/P | 2 | 0.04 % | | 2 | 0.02 % | | 34 | C D C C C / D | K9QVB/9 | 2 | 0.04 % | | 2 | 0.02 % | | 35 | C C D / C C D C | PJ7/NF4U | 2 | 0.04 % | | 2 | 0.02 % | | 36 | D C / C D D C C | 9A/S57KM | 1 | 0.02 % | | 2 | 0.02 % | | 37 | D C / C C D C C C | 9A/DM5JBN | 1 | 0.02 % | | 5 | 0.04 % | | 38 | C C D C C C C | HA6OKNA | 1 | 0.02 % | | 1 | 0.01 % | | 39 | C D / C C D C C | I3/VY2YY | 1 | 0.02 % | | 1 | 0.01 % | | 40 | C C D C C / C D | AC1BU/W1 | 1 | 0.02 % | | 1 | 0.01 % | | 41 | C C D C C C / C C D | IK2AIT/IV3 | 1 | 0.02 % | | 1 | 0.01 % | | 42 | D C D C C / C | 4X1UF/M | 1 | 0.02 % | | 2 | 0.02 % | | 43 | C C D C C D C C C | LY5EN2SQW | 1 | 0.02 % | | 1 | 0.01 % | | 44 | C / C D C C C | F/G4BJM | 1 | 0.02 % | | 4 | 0.03 % | | 45 | C / C C D C C C | F/GW3YDX | 1 | 0.02 % | | 1 | 0.01 % | | 46 | C D C C / C C D | N8GU/VO1 | 1 | 0.02 % | | 1 | 0.01 % | | 47 | C C / C D C C C | HA/R2DAW | 1 | 0.02 % | | 2 | 0.02 % | | 48 | C C / C D C C C / C | DL/F4EPU/P | 1 | 0.02 % | | 1 | 0.01 % | | 49 | C C C D C C C | OKK2ABD | 1 | 0.02 % | | 1 | 0.01 % | | 50 | C C / C C D C C / C | OZ/DL3JJ/P | 1 | 0.02 % | | 1 | 0.01 % | | 51 | D C D D C | 8P50B | 1 | 0.02 % | | 1 | 0.01 % | | 52 | C D D D D C | R1255F | 1 | 0.02 % | | 4 | 0.03 % | | 53 | C C D C / C | EW4R/P | 1 | 0.02 % | | 1 | 0.01 % | | 54 | C C D / C D D C C / C | SV4/Z32TO/P | 1 | 0.02 % | | 1 | 0.01 % | | 55 | C / C C D C C | F/DF5RF | 1 | 0.02 % | | 1 | 0.01 % | | 56 | C C D C C / C C | UA6GO/MM | 1 | 0.02 % | | 1 | 0.01 % | | 57 | C D / C C D C | V4/KE1B | 1 | 0.02 % | | 1 | 0.01 % | | 58 | C D C C / C | W4GO/M | 1 | 0.02 % | | 1 | 0.01 % | | 59 | C C D C C / C C C | YU1LM/QRP | 1 | 0.02 % | | 8 | 0.07 % | |
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