| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA7LIP | 1436 | 48.12 % | | 2139 | 48.71 % | | 2 | C C D C C | AC2NI | 760 | 25.47 % | | 1129 | 25.71 % | | 3 | C D C C C | F1AWL | 368 | 12.33 % | | 538 | 12.25 % | | 4 | C C D C | AK5X | 111 | 3.72 % | | 150 | 3.42 % | | 5 | C D C C | D1DX | 90 | 3.02 % | | 126 | 2.87 % | | 6 | D C D C C | 3B8HK | 39 | 1.31 % | | 69 | 1.57 % | | 7 | D C D C C C | 2E0CVN | 37 | 1.24 % | | 48 | 1.09 % | | 8 | C D D C C | A41ZZ | 28 | 0.94 % | | 35 | 0.80 % | | 9 | C C D C C C / C | DL1DXF/P | 12 | 0.40 % | | 16 | 0.36 % | | 10 | C D C C C / C | F4GCB/P | 10 | 0.34 % | | 11 | 0.25 % | | 11 | C C D C C C / C C C | DH7AMF/QRP | 9 | 0.30 % | | 9 | 0.20 % | | 12 | C C D C C / C | DH7WW/P | 7 | 0.23 % | | 7 | 0.16 % | | 13 | C C D C C / C C C | DF4KP/QRP | 7 | 0.23 % | | 7 | 0.16 % | | 14 | D C D C | 3Z3T | 7 | 0.23 % | | 23 | 0.52 % | | 15 | C C D D C C C | DQ23IVG | 7 | 0.23 % | | 13 | 0.30 % | | 16 | C D D C | E75W | 5 | 0.17 % | | 6 | 0.14 % | | 17 | C D D C C C | R80OSM | 4 | 0.13 % | | 5 | 0.11 % | | 18 | C C D C C C C | EH3ARRL | 4 | 0.13 % | | 6 | 0.14 % | | 19 | C C / C C D C C | DL/HA8PG | 3 | 0.10 % | | 4 | 0.09 % | | 20 | C C D C C C / D | IU0PIO/7 | 3 | 0.10 % | | 3 | 0.07 % | | 21 | C C / C C D C C C | DL/HB9CYF | 3 | 0.10 % | | 3 | 0.07 % | | 22 | C C D / C C D C C C | BW2/JA1QQV | 2 | 0.07 % | | 2 | 0.05 % | | 23 | C / C C D C C | I/DC1YL | 2 | 0.07 % | | 2 | 0.05 % | | 24 | C C / C D C C C / C | ON/F1LPT/P | 2 | 0.07 % | | 4 | 0.09 % | | 25 | C C D D C C | OP10KF | 2 | 0.07 % | | 2 | 0.05 % | | 26 | C C D C / D | RC2O/6 | 2 | 0.07 % | | 4 | 0.09 % | | 27 | C C D C C / D | OH3EX/6 | 2 | 0.07 % | | 3 | 0.07 % | | 28 | C D C C / C | R2EA/M | 2 | 0.07 % | | 4 | 0.09 % | | 29 | C C D D D C C C | DB100RDF | 2 | 0.07 % | | 2 | 0.05 % | | 30 | C D C C / D | N1UL/2 | 2 | 0.07 % | | 3 | 0.07 % | | 31 | D C / C C D C C | 9A/ON6GU | 1 | 0.03 % | | 1 | 0.02 % | | 32 | D C D C C C / C | 2E0HPI/P | 1 | 0.03 % | | 1 | 0.02 % | | 33 | C C D C C C C C C | DL1EUROPE | 1 | 0.03 % | | 1 | 0.02 % | | 34 | D C D D C C | 3Z70FI | 1 | 0.03 % | | 2 | 0.05 % | | 35 | C C / C D C C | MW/K7TP | 1 | 0.03 % | | 1 | 0.02 % | | 36 | C / C C D C C C | M/YO4HGX | 1 | 0.03 % | | 1 | 0.02 % | | 37 | C C D D D C C | DL100TC | 1 | 0.03 % | | 2 | 0.05 % | | 38 | C / C C D C C C / C | F/DL1KBA/P | 1 | 0.03 % | | 1 | 0.02 % | | 39 | D C / C C D C C C | 9A/DG8MFV | 1 | 0.03 % | | 1 | 0.02 % | | 40 | C C D D C | PF40N | 1 | 0.03 % | | 1 | 0.02 % | | 41 | D C D D D C C | 9A150NT | 1 | 0.03 % | | 1 | 0.02 % | | 42 | C C D C C C / C C D | IK4QJF/IN3 | 1 | 0.03 % | | 1 | 0.02 % | | 43 | C D C C C / C C C | R9WEI/QRP | 1 | 0.03 % | | 1 | 0.02 % | | 44 | C C D C C C / D / C C IW1GGS/1/QRP | 1 | 0.03 % | | 1 | 0.02 % | | | 45 | C C D D C C C C | TM44CDXC | 1 | 0.03 % | | 1 | 0.02 % | | 46 | C C D C / C | UI6A/P | 1 | 0.03 % | | 1 | 0.02 % | |
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