| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BH1DYK | 555 | 31.57 % | | 805 | 28.33 % | | 2 | C C D C C | AA4AK | 543 | 30.89 % | | 857 | 30.15 % | | 3 | C D C C C | F1FPL | 191 | 10.86 % | | 241 | 8.48 % | | 4 | C C D C | AA3B | 165 | 9.39 % | | 341 | 12.00 % | | 5 | C D C C | F2YT | 84 | 4.78 % | | 112 | 3.94 % | | 6 | C D C | B2W | 31 | 1.76 % | | 80 | 2.81 % | | 7 | D C D C C | 3V8SM | 22 | 1.25 % | | 61 | 2.15 % | | 8 | C D D C C | E73SF | 17 | 0.97 % | | 35 | 1.23 % | | 9 | C D D C | E72U | 16 | 0.91 % | | 37 | 1.30 % | | 10 | C D C C C / C | F4FLQ/P | 15 | 0.85 % | | 29 | 1.02 % | | 11 | C C D C C C / C | DG5LAC/P | 15 | 0.85 % | | 29 | 1.02 % | | 12 | D C D C C C | 2E0GCK | 13 | 0.74 % | | 22 | 0.77 % | | 13 | C C D C C / C | DB6VP/P | 11 | 0.63 % | | 30 | 1.06 % | | 14 | D C D C | 8S0W | 9 | 0.51 % | | 14 | 0.49 % | | 15 | C C D / C C D C C | CT7/PB8DX | 7 | 0.40 % | | 14 | 0.49 % | | 16 | C C / C C D C C | JW/LB5WB | 6 | 0.34 % | | 15 | 0.53 % | | 17 | C C / C C D C C C | DL/PA3HGT | 6 | 0.34 % | | 12 | 0.42 % | | 18 | C C D C C C / D | IK2UCK/7 | 5 | 0.28 % | | 7 | 0.25 % | | 19 | C C D / C C D C C C |
ID9/IT9BXR | 5 | 0.28 % | | 9 | 0.32 % | | 20 | C C D C C / D | EA1YO/6 | 4 | 0.23 % | | 8 | 0.28 % | | 21 | D C D C / C | 9A5D/P | 3 | 0.17 % | | 11 | 0.39 % | | 22 | D C / C C D C C | 9A/HA3MY | 3 | 0.17 % | | 5 | 0.18 % | | 23 | C C D / C D C C C | EA6/M0DXR | 3 | 0.17 % | | 4 | 0.14 % | | 24 | C C D / C C D C | IS0/OM8A | 3 | 0.17 % | | 8 | 0.28 % | | 25 | C C / C D C C C | DL/F4GVE | 3 | 0.17 % | | 4 | 0.14 % | | 26 | C C D C / C | DF5A/P | 3 | 0.17 % | | 7 | 0.25 % | | 27 | C C / C C D C | PA/OQ4T | 2 | 0.11 % | | 5 | 0.18 % | | 28 | C / C C D C C C | F/PA3TOP | 2 | 0.11 % | | 4 | 0.14 % | | 29 | C C D D C C C | DM88YLF | 1 | 0.06 % | | 4 | 0.14 % | | 30 | C / C D C C C / C | F/G4BJM/P | 1 | 0.06 % | | 2 | 0.07 % | | 31 | C D C C / C | G4EK/P | 1 | 0.06 % | | 1 | 0.04 % | | 32 | D C / C D D C | 9A/S56C | 1 | 0.06 % | | 1 | 0.04 % | | 33 | D C D C C C / C | 9A1CBM/P | 1 | 0.06 % | | 4 | 0.14 % | | 34 | C C D C C C / C C D |
IV3BCA/IV3 | 1 | 0.06 % | | 3 | 0.11 % | | 35 | D C / C C D C C C | 9A/DL3NCI | 1 | 0.06 % | | 3 | 0.11 % | | 36 | C D C C C / D | K9QVB/9 | 1 | 0.06 % | | 1 | 0.04 % | | 37 | C D C C C / C C C | M6KLR/QRP | 1 | 0.06 % | | 1 | 0.04 % | | 38 | C C / C D C C C / C |
MD/F5BLC/P | 1 | 0.06 % | | 1 | 0.04 % | | 39 | C C D D C | OZ11A | 1 | 0.06 % | | 3 | 0.11 % | | 40 | C C D D C C | OZ30EU | 1 | 0.06 % | | 1 | 0.04 % | | 41 | C C D C C C C | II3IOTA | 1 | 0.06 % | | 7 | 0.25 % | | 42 | C C D D D C C | PA146EU | 1 | 0.06 % | | 1 | 0.04 % | | 43 | C D D C C C C | R66IOTA | 1 | 0.06 % | | 1 | 0.04 % | | 44 | C C / C D D C C | TK/S55OO | 1 | 0.06 % | | 2 | 0.07 % | |
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