| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA7LIP | 2902 | 50.95 % | | 6225 | 57.22 % | | 2 | C C D C C | AA4UC | 1328 | 23.31 % | | 2246 | 20.65 % | | 3 | C D C C C | B7CRA | 659 | 11.57 % | | 1169 | 10.75 % | | 4 | C C D C | AA0N | 288 | 5.06 % | | 403 | 3.70 % | | 5 | C D C C | D1BB | 132 | 2.32 % | | 202 | 1.86 % | | 6 | D C D C C C | 2E0DUE | 56 | 0.98 % | | 93 | 0.85 % | | 7 | D C D C C | 3B8HK | 50 | 0.88 % | | 89 | 0.82 % | | 8 | C D D C C | A41KB | 33 | 0.58 % | | 53 | 0.49 % | | 9 | C C D C C C / C C C | DH8TOM/QRP | 27 | 0.47 % | | 36 | 0.33 % | | 10 | C C D C C C / C | CT7AQH/P | 25 | 0.44 % | | 28 | 0.26 % | | 11 | C D D C | E67A | 23 | 0.40 % | | 33 | 0.30 % | | 12 | C C D C C / C | DF4JH/P | 15 | 0.26 % | | 16 | 0.15 % | | 13 | C C D D C C C | DL25KYF | 14 | 0.25 % | | 25 | 0.23 % | | 14 | C C D D C C | OP20CW | 12 | 0.21 % | | 15 | 0.14 % | | 15 | D C D C | 3Z8Z | 12 | 0.21 % | | 88 | 0.81 % | | 16 | C C D C C / C C C | DF4JH/QRP | 11 | 0.19 % | | 14 | 0.13 % | | 17 | C C D C C C / D | EA8AAH/5 | 8 | 0.14 % | | 8 | 0.07 % | | 18 | C D C C C / C | F1SHV/M | 7 | 0.12 % | | 10 | 0.09 % | | 19 | C D C C C / C C C | F4DXX/QRP | 6 | 0.11 % | | 10 | 0.09 % | | 20 | C C D D C | EV78C | 6 | 0.11 % | | 7 | 0.06 % | | 21 | C C D D D C C C | DB100RDF | 5 | 0.09 % | | 13 | 0.12 % | | 22 | C C D D D C C | DL100TC | 5 | 0.09 % | | 6 | 0.06 % | | 23 | C C D C C C / C C | IZ1GCL/MM | 4 | 0.07 % | | 4 | 0.04 % | | 24 | C D C | G3P | 4 | 0.07 % | | 5 | 0.05 % | | 25 | C C D C / D | RC2O/6 | 4 | 0.07 % | | 4 | 0.04 % | | 26 | C C D / C C D C C C | CT7/PA3GCU | 4 | 0.07 % | | 8 | 0.07 % | | 27 | C D / C C D C C C | I1/YV5JDT | 3 | 0.05 % | | 3 | 0.03 % | | 28 | C C D C C C C | OH6OKSA | 3 | 0.05 % | | 3 | 0.03 % | | 29 | C D D C C C | S56FML | 3 | 0.05 % | | 3 | 0.03 % | | 30 | C D C C / D | N1UL/2 | 3 | 0.05 % | | 5 | 0.05 % | | 31 | C C D C C / D | LZ3WY/2 | 3 | 0.05 % | | 3 | 0.03 % | | 32 | C C / C C D C C | PA/ON5AF | 3 | 0.05 % | | 3 | 0.03 % | | 33 | C C C C C C | IKONMJ | 3 | 0.05 % | | 3 | 0.03 % | | 34 | C D D D C C | R105PW | 2 | 0.04 % | | 3 | 0.03 % | | 35 | C / C C D C C C | F/PA0WCH | 2 | 0.04 % | | 2 | 0.02 % | | 36 | C C / C C D C C C | EW/DL7VFM | 2 | 0.04 % | | 2 | 0.02 % | | 37 | C D D D D C C | Z3100TC | 2 | 0.04 % | | 2 | 0.02 % | | 38 | C C D D D C C C C C | DL100RADIO | 2 | 0.04 % | | 2 | 0.02 % | | 39 | D C / C C D C C | 9A/DM3XD | 2 | 0.04 % | | 2 | 0.02 % | | 40 | C D C C C / C / C C C | F4AAS/P/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 41 | D C D D C C | 3Z70FI | 1 | 0.02 % | | 6 | 0.06 % | | 42 | C D / C C D C C | I2/UY2ZA | 1 | 0.02 % | | 1 | 0.01 % | | 43 | D C D D D C C C | 3Z150GHJ | 1 | 0.02 % | | 1 | 0.01 % | | 44 | C D / C D C C | E7/Z3HM | 1 | 0.02 % | | 1 | 0.01 % | | 45 | D C / C C D C C C | 9A/TA7YLY | 1 | 0.02 % | | 1 | 0.01 % | | 46 | C C D C C C / C C D | IK2ISX/IN3 | 1 | 0.02 % | | 1 | 0.01 % | | 47 | D C C C C D | 3QSOB4 | 1 | 0.02 % | | 1 | 0.01 % | | 48 | C / C C D C C C / C | F/HB9HPR/P | 1 | 0.02 % | | 1 | 0.01 % | | 49 | C C D / C C D C C | OJ0/LA1UW | 1 | 0.02 % | | 1 | 0.01 % | | 50 | C C / C C D C C / C | OK/DH7WW/P | 1 | 0.02 % | | 3 | 0.03 % | | 51 | C C / C D C C C / C | ON/F1LPT/P | 1 | 0.02 % | | 1 | 0.01 % | | 52 | D C D C C / C C C | 4X6FB/QRP | 1 | 0.02 % | | 2 | 0.02 % | | 53 | C C D C C C / D D D | HC2GRC/100 | 1 | 0.02 % | | 1 | 0.01 % | | 54 | C D C C C / D | R0AAE/6 | 1 | 0.02 % | | 2 | 0.02 % | | 55 | C / C C D C C | I/DK9BT | 1 | 0.02 % | | 1 | 0.01 % | | 56 | C D C C / C | R5AV/P | 1 | 0.02 % | | 1 | 0.01 % | | 57 | C D D C / C C C | E74R/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 58 | C C D / C C D C | EA8/EA5Y | 1 | 0.02 % | | 1 | 0.01 % | | 59 | C C D / C D C C C | TA4/M0MPM | 1 | 0.02 % | | 1 | 0.01 % | | 60 | C C D D C C C C | TM84AERO | 1 | 0.02 % | | 1 | 0.01 % | | 61 | C C D C C / C C D | VA7CD/DU7 | 1 | 0.02 % | | 1 | 0.01 % | | 62 | C / C D D C | F/E72T | 1 | 0.02 % | | 2 | 0.02 % | |
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