| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | AU3VGS | 2387 | 29.37 % | | 3881 | 3.92 % | | 2 | C C D C C | AA1AY | 2112 | 25.99 % | | 3752 | 3.79 % | | 3 | C C D C | AA1K | 1206 | 14.84 % | | 2404 | 2.43 % | | 4 | C D C C C | C6AAE | 857 | 10.55 % | | 1192 | 1.20 % | | 5 | C D C C | A4KD | 714 | 8.79 % | | 1306 | 1.32 % | | 6 | C D D C | A25R | 95 | 1.17 % | | 206 | 0.21 % | | 7 | C D C | B0A | 86 | 1.06 % | | 129 | 0.13 % | | 8 | C D D C C | A25RA | 85 | 1.05 % | | 131 | 0.13 % | | 9 | C C D C C C / C | CT7AFI/P | 82 | 1.01 % | | 118 | 0.12 % | | 10 | D C D C C | 3B9KW | 77 | 0.95 % | | 130 | 0.13 % | | 11 | D C D C | 3B8M | 59 | 0.73 % | | 109 | 0.11 % | | 12 | C C D C C / C | DH4RA/P | 34 | 0.42 % | | 54 | 0.05 % | | 13 | D C D C C C | 2E0CVN | 29 | 0.36 % | | 54 | 0.05 % | | 14 | C D C C C / C | F4HOD/P | 27 | 0.33 % | | 34 | 0.03 % | | 15 | C C D D C C C | CQ11ESF | 20 | 0.25 % | | 39 | 0.04 % | | 16 | C C D C C C / C C C | EA1AMN/QRP | 17 | 0.21 % | | 18 | 0.02 % | | 17 | C C D / C C D C C | CE9/HA3NU | 14 | 0.17 % | | 27 | 0.03 % | | 18 | C C / C C D C C | DL/HA8PG | 12 | 0.15 % | | 18 | 0.02 % | | 19 | C C D C / C | DA3T/P | 11 | 0.14 % | | 18 | 0.02 % | | 20 | C D C C / C | A7UL/P | 11 | 0.14 % | | 15 | 0.02 % | | 21 | C D C C C / C C C | F5FAB/QRP | 10 | 0.12 % | | 11 | 0.01 % | | 22 | C C D C C C / D | IT9YHI/3 | 10 | 0.12 % | | 21 | 0.02 % | | 23 | C D C C / D | N6GQ/1 | 10 | 0.12 % | | 19 | 0.02 % | | 24 | C C D / C C D C C C | CT9/IV3CTS | 9 | 0.11 % | | 14 | 0.01 % | | 25 | C D D C C C | A25RDM | 9 | 0.11 % | | 14 | 0.01 % | | 26 | C C D C C C C | EA1FCAA | 8 | 0.10 % | | 10 | 0.01 % | | 27 | C C D D C C | EI80MB | 7 | 0.09 % | | 19 | 0.02 % | | 28 | C C D C C / C C C | DH4RA/QRP | 7 | 0.09 % | | 10 | 0.01 % | | 29 | C C D D D C C | AM175MB | 7 | 0.09 % | | 17 | 0.02 % | | 30 | C C D D D C C C | AM775CPT | 6 | 0.07 % | | 20 | 0.02 % | | 31 | C D / C C D C C | C9/DL1CW | 5 | 0.06 % | | 6 | 0.01 % | | 32 | C C D D C C C C C | HA37EUDXF | 5 | 0.06 % | | 14 | 0.01 % | | 33 | C C D C C C C C | EH5MIURA | 4 | 0.05 % | | 6 | 0.01 % | | 34 | C C / C C D C C C | DL/HB9HDC | 4 | 0.05 % | | 5 | 0.01 % | | 35 | C C D / C D C C C | EA7/G4BJM | 4 | 0.05 % | | 8 | 0.01 % | | 36 | D C / C C D C C | 5B/UW7LL | 4 | 0.05 % | | 7 | 0.01 % | | 37 | D C / C C D C C C | 9A/KA4JAM | 4 | 0.05 % | | 7 | 0.01 % | | 38 | C C / C C D C C C / C | DL/HB9CGA/P | 4 | 0.05 % | | 5 | 0.01 % | | 39 | C C / C C D C | LX/PA3A | 4 | 0.05 % | | 9 | 0.01 % | | 40 | C D D C / C | S51B/M | 4 | 0.05 % | | 5 | 0.01 % | | 41 | C C D C C / D | LZ3WY/2 | 4 | 0.05 % | | 8 | 0.01 % | | 42 | D C / C D C C C | 9A/F4IEY | 3 | 0.04 % | | 5 | 0.01 % | | 43 | C C D / C C D C | PJ2/NA2U | 3 | 0.04 % | | 6 | 0.01 % | | 44 | C C / C C D C C / C | OE/DL3TU/P | 3 | 0.04 % | | 3 | 0.00 % | | 45 | C C D D C | CU25I | 3 | 0.04 % | | 5 | 0.01 % | | 46 | C C D C C C C C C | EA1ASGTOR | 3 | 0.04 % | | 4 | 0.00 % | | 47 | D C D / C D C C C | 3B8/M0SDV | 2 | 0.02 % | | 4 | 0.00 % | | 48 | C / C C D C C C / C | I/HB9BQU/P | 2 | 0.02 % | | 2 | 0.00 % | | 49 | C C D C C C / C C | EA4DOS/PK | 2 | 0.02 % | | 2 | 0.00 % | | 50 | C C D / C D C C | IT9/W5MX | 2 | 0.02 % | | 2 | 0.00 % | | 51 | C D D D C C | R100FP | 2 | 0.02 % | | 12 | 0.01 % | | 52 | C D C C C / C C D | I2VXJ/IT9 | 2 | 0.02 % | | 4 | 0.00 % | | 53 | C C D D C C C C | PA80STAR | 2 | 0.02 % | | 2 | 0.00 % | | 54 | C D D C C / C | S52AU/P | 2 | 0.02 % | | 2 | 0.00 % | | 55 | D C D D C C | 8S80AA | 2 | 0.02 % | | 5 | 0.01 % | | 56 | D C D C / C | 3Z7Z/P | 1 | 0.01 % | | 1 | 0.00 % | | 57 | C C / C D C C | CX/N5ZO | 1 | 0.01 % | | 1 | 0.00 % | | 58 | C C D C C C C / C C | DL5JQOK/OM | 1 | 0.01 % | | 1 | 0.00 % | | 59 | C / C C D C C | F/FK8IK | 1 | 0.01 % | | 1 | 0.00 % | | 60 | D C D C C C C | 9K9OMAN | 1 | 0.01 % | | 1 | 0.00 % | | 61 | D C D C C / C | 9A0FF/P | 1 | 0.01 % | | 1 | 0.00 % | | 62 | C C D C / C C D | AB2E/VP9 | 1 | 0.01 % | | 1 | 0.00 % | | 63 | C D D / C C D C | A71/RN1B | 1 | 0.01 % | | 2 | 0.00 % | | 64 | D C D / C C D C | 3B8/WD6T | 1 | 0.01 % | | 1 | 0.00 % | | 65 | C D / C C D C C C | I2/IK4WLA | 1 | 0.01 % | | 1 | 0.00 % | | 66 | C C D D D C C C C C | DL100RADIO | 1 | 0.01 % | | 1 | 0.00 % | | 67 | C D / C D C C | E7/W2RE | 1 | 0.01 % | | 1 | 0.00 % | | 68 | C C D C C / C C | IQ2CP/BG | 1 | 0.01 % | | 1 | 0.00 % | | 69 | C D D D C C C | E750ESP | 1 | 0.01 % | | 1 | 0.00 % | | 70 | C D C C C C C C | E7BOSNIA | 1 | 0.01 % | | 4 | 0.00 % | | 71 | D C D D C C C | 4K50DHC | 1 | 0.01 % | | 1 | 0.00 % | | 72 | D C D D C | 9A30T | 1 | 0.01 % | | 1 | 0.00 % | | 73 | C D C C C / D | N3RTX/3 | 1 | 0.01 % | | 1 | 0.00 % | | 74 | D C D / D C D C | 3B8/4O3A | 1 | 0.01 % | | 1 | 0.00 % | | 75 | C C D / C C D C C / C | EA5/TF3CW/P | 1 | 0.01 % | | 1 | 0.00 % | | 76 | D C / C D D C C | 9A/S56NE | 1 | 0.01 % | | 4 | 0.00 % | | 77 | C C D C C C / C C D | IK2EGL/IT9 | 1 | 0.01 % | | 2 | 0.00 % | | 78 | C C D / C D D C C | CT9/S51TA | 1 | 0.01 % | | 1 | 0.00 % | | 79 | C D D D D C C | R2023DX | 1 | 0.01 % | | 1 | 0.00 % | | 80 | C D D C C C C | R80SUSU | 1 | 0.01 % | | 2 | 0.00 % | | 81 | C / C C D C C C | F/FK8IKF | 1 | 0.01 % | | 1 | 0.00 % | | 82 | C C D / C C D C C C / EA8/DL2DXA/P | 1 | 0.01 % | | 5 | 0.01 % | | | 83 | C D D C C / C C C | S53BV/QRP | 1 | 0.01 % | | 1 | 0.00 % | | 84 | C C D C / D | UA5B/4 | 1 | 0.01 % | | 1 | 0.00 % | | 85 | C D D C C C C C | Z35TTETT | 1 | 0.01 % | | 1 | 0.00 % | |
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