| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 905 | 33.81 % | | 1668 | 35.00 % | | 2 | C C D C C C | CM8NMN | 666 | 24.88 % | | 992 | 20.81 % | | 3 | C C D C | AA1K | 349 | 13.04 % | | 685 | 14.37 % | | 4 | C D C C | D1HQ | 321 | 11.99 % | | 495 | 10.39 % | | 5 | C D C C C | F1IWH | 157 | 5.86 % | | 234 | 4.91 % | | 6 | C D D C | E72U | 93 | 3.47 % | | 354 | 7.43 % | | 7 | C D D C C | A41NN | 36 | 1.34 % | | 64 | 1.34 % | | 8 | D C D C C | 3V8CB | 31 | 1.16 % | | 55 | 1.15 % | | 9 | D C D C | 3Z0X | 15 | 0.56 % | | 26 | 0.55 % | | 10 | C D C | G3P | 15 | 0.56 % | | 40 | 0.84 % | | 11 | C C D C C / C | DB3DE/P | 8 | 0.30 % | | 11 | 0.23 % | | 12 | C C / C D C C | DL/K3LA | 7 | 0.26 % | | 16 | 0.34 % | | 13 | C C / C C D C C C | DL/HB9DQL | 6 | 0.22 % | | 13 | 0.27 % | | 14 | C D C C C / C | F4GKR/P | 6 | 0.22 % | | 9 | 0.19 % | | 15 | C C / C C D C C | DL/EA7KW | 6 | 0.22 % | | 15 | 0.31 % | | 16 | C C / C C D C | DL/HG0R | 5 | 0.19 % | | 9 | 0.19 % | | 17 | D C D C C C | 2E0MNG | 4 | 0.15 % | | 5 | 0.10 % | | 18 | C C D C C C / C | DL5RMH/P | 4 | 0.15 % | | 5 | 0.10 % | | 19 | C C D D D C C C | OE100RJJ | 3 | 0.11 % | | 7 | 0.15 % | | 20 | C C D / C C D C C | EA6/DK5ON | 3 | 0.11 % | | 5 | 0.10 % | | 21 | C C D D C C C | DB25ONN | 2 | 0.07 % | | 2 | 0.04 % | | 22 | C / C C D C C | F/DF5RF | 2 | 0.07 % | | 3 | 0.06 % | | 23 | C C D C C C / C C | DG7LAN/MM | 2 | 0.07 % | | 2 | 0.04 % | | 24 | C D D C C C | R18FRA | 2 | 0.07 % | | 2 | 0.04 % | | 25 | C C D C C / C C C | EA7TN/QRP | 2 | 0.07 % | | 3 | 0.06 % | | 26 | C C / C D C C C | DL/W1EBI | 2 | 0.07 % | | 3 | 0.06 % | | 27 | C C D C / D | RT9T/3 | 2 | 0.07 % | | 3 | 0.06 % | | 28 | C C D D C | OG55W | 2 | 0.07 % | | 9 | 0.19 % | | 29 | C C D C C / D | NU1AW/9 | 2 | 0.07 % | | 5 | 0.10 % | | 30 | C C D C / C | RA1L/P | 2 | 0.07 % | | 2 | 0.04 % | | 31 | C C D C C C C | DA0WRTC | 1 | 0.04 % | | 1 | 0.02 % | | 32 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 2 | 0.04 % | | 33 | C / C D C C | I/W9CG | 1 | 0.04 % | | 1 | 0.02 % | | 34 | C D C C C / D | K9QVB/9 | 1 | 0.04 % | | 1 | 0.02 % | | 35 | C C D D C C | LM90HQ | 1 | 0.04 % | | 1 | 0.02 % | | 36 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.04 % | | 37 | C D C C C / C C C | G4WGE/QRP | 1 | 0.04 % | | 1 | 0.02 % | | 38 | D C D D D C | 3Z100K | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C / C D C C C | F/G0PZA | 1 | 0.04 % | | 1 | 0.02 % | | 40 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 1 | 0.02 % | | 41 | D C D C C / C | 9A6DR/P | 1 | 0.04 % | | 1 | 0.02 % | | 42 | C C D / C C D C C C / C' | ES7/OH3KAV/M | 1 | 0.04 % | | 1 | 0.02 % | | 43 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 3 | 0.06 % | | 44 | C C D / C D D C C | SV9/S55OO | 1 | 0.04 % | | 2 | 0.04 % | | 45 | C D C C / D | W9OA/9 | 1 | 0.04 % | | 1 | 0.02 % | | 46 | C C D C C / C C | YL3IZ/MM | 1 | 0.04 % | | 2 | 0.04 % | | 47 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % | | 2 | 0.04 % | |
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