| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA7ITT | 505 | 73.83 % | | 609 | 73.55 % | | 2 | C C D C C | BA1SN | 81 | 11.84 % | | 101 | 12.20 % | | 3 | D C D C C C | 4E1EEE | 33 | 4.82 % | | 42 | 5.07 % | | 4 | C C D C | BP0P | 22 | 3.22 % | | 24 | 2.90 % | | 5 | C D C C | K6NR | 10 | 1.46 % | | 10 | 1.21 % | | 6 | C D D C C C | E20XMG | 6 | 0.88 % | | 6 | 0.72 % | | 7 | C C D C C C / D | JA3RTU/9 | 6 | 0.88 % | | 7 | 0.85 % | | 8 | D C D C | 4D3X | 5 | 0.73 % | | 9 | 1.09 % | | 9 | D C D C C | 4F3OM | 4 | 0.58 % | | 4 | 0.48 % | | 10 | C D C C C | N7EKD | 2 | 0.29 % | | 2 | 0.24 % | | 11 | C D D C C | E27EK | 2 | 0.29 % | | 3 | 0.36 % | | 12 | C C D / C D C C C | DU6/N7MOT | 1 | 0.15 % | | 1 | 0.12 % | | 13 | D C C | 4EA | 1 | 0.15 % | | 1 | 0.12 % | | 14 | C D / C C D C C C | B9/BH1NGG | 1 | 0.15 % | | 1 | 0.12 % | | 15 | C C D / C C D C C C | BW2/JP1RIW | 1 | 0.15 % | | 1 | 0.12 % | | 16 | C D C / C C D C C C | B9A/BH1NGG | 1 | 0.15 % | | 1 | 0.12 % | | 17 | C D C | E2A | 1 | 0.15 % | | 2 | 0.24 % | | 18 | D C D C C C / D | 7N1PVD/1 | 1 | 0.15 % | | 3 | 0.36 % | | 19 | C C D D C C C | YE24OII | 1 | 0.15 % | | 1 | 0.12 % | |
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