| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BA0AXS | 1550 | 31.75 % | | 2337 | 27.45 % | | 2 | C C D C C | AB1EP | 1477 | 30.25 % | | 2723 | 31.99 % | | 3 | C C D C | AB1J | 539 | 11.04 % | | 1242 | 14.59 % | | 4 | C D C C C | F1AGR | 503 | 10.30 % | | 666 | 7.82 % | | 5 | C D C C | B1HQ | 387 | 7.93 % | | 636 | 7.47 % | | 6 | C D D C | E70A | 102 | 2.09 % | | 346 | 4.06 % | | 7 | C D D C C | A41NN | 56 | 1.15 % | | 123 | 1.44 % | | 8 | D C D C C | 3V8CB | 37 | 0.76 % | | 75 | 0.88 % | | 9 | D C D C C C | 2E0CNL | 36 | 0.74 % | | 51 | 0.60 % | | 10 | C D C | C4W | 20 | 0.41 % | | 57 | 0.67 % | | 11 | D C D C | 3Z0X | 19 | 0.39 % | | 43 | 0.51 % | | 12 | C C D C C C / C | DG3LSM/P | 18 | 0.37 % | | 19 | 0.22 % | | 13 | C C D C C / C | DB7HL/P | 13 | 0.27 % | | 16 | 0.19 % | | 14 | C D D C C C | E20NGF | 10 | 0.20 % | | 13 | 0.15 % | | 15 | C C / C C D C C C | DL/KF5EYY | 9 | 0.18 % | | 9 | 0.11 % | | 16 | C D C C C / C | F4GKR/P | 7 | 0.14 % | | 15 | 0.18 % | | 17 | C C D D D C C C | OE100CQB | 7 | 0.14 % | | 13 | 0.15 % | | 18 | C C / C C D C C | CT/DF9LW | 6 | 0.12 % | | 11 | 0.13 % | | 19 | C C D C C / D | NU1AW/9 | 5 | 0.10 % | | 9 | 0.11 % | | 20 | C C D / C C D C C | EA3/DL5FH | 5 | 0.10 % | | 7 | 0.08 % | | 21 | C C D D C C C | DB25ONN | 5 | 0.10 % | | 8 | 0.09 % | | 22 | C C D D C C | LM90HQ | 4 | 0.08 % | | 6 | 0.07 % | | 23 | C C D C C C C | DA0WRTC | 4 | 0.08 % | | 4 | 0.05 % | | 24 | C C D C C C / D | IZ1GYI/7 | 4 | 0.08 % | | 6 | 0.07 % | | 25 | C C D D D C C | DL100BY | 3 | 0.06 % | | 5 | 0.06 % | | 26 | C / C C D C C | F/DK1AF | 3 | 0.06 % | | 3 | 0.04 % | | 27 | C D C C / D | R8MB/1 | 3 | 0.06 % | | 5 | 0.06 % | | 28 | C C D D D C | HF100I | 2 | 0.04 % | | 2 | 0.02 % | | 29 | C C D C C C / C C | DG7LAN/MM | 2 | 0.04 % | | 4 | 0.05 % | | 30 | D C D C C C / C | 2E0DJD/P | 2 | 0.04 % | | 2 | 0.02 % | | 31 | C C / C C D C | DL/OL0A | 2 | 0.04 % | | 3 | 0.04 % | | 32 | C C D / C D C C C | EA8/F4HHL | 2 | 0.04 % | | 2 | 0.02 % | | 33 | C C D C C C / C C C | EA7AAW/QRP | 2 | 0.04 % | | 2 | 0.02 % | | 34 | C / C C D C C C | F/PA2PME | 2 | 0.04 % | | 2 | 0.02 % | | 35 | C C D D C | EM55Q | 2 | 0.04 % | | 3 | 0.04 % | | 36 | C C D / C C D C C C | EA6/DK5OUK | 2 | 0.04 % | | 2 | 0.02 % | | 37 | C C D C / D | RT9T/3 | 2 | 0.04 % | | 3 | 0.04 % | | 38 | C C D D C C C C | LM90NRRL | 2 | 0.04 % | | 3 | 0.04 % | | 39 | C C D C C / C C | RA0LQ/MM | 2 | 0.04 % | | 3 | 0.04 % | | 40 | D C D D D C | 3Z100K | 1 | 0.02 % | | 1 | 0.01 % | | 41 | D C D C C / C | 9A6DR/P | 1 | 0.02 % | | 1 | 0.01 % | | 42 | D C D C C / C C C | 9A4OP/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 43 | D C / C D D C C | 9A/S57KM | 1 | 0.02 % | | 4 | 0.05 % | | 44 | C / C D C C C / C | I/G4BJM/M | 1 | 0.02 % | | 1 | 0.01 % | | 45 | C D C C C / C D | G3ODO/W4 | 1 | 0.02 % | | 1 | 0.01 % | | 46 | D C / C D D C | 9A/S55G | 1 | 0.02 % | | 2 | 0.02 % | | 47 | C / C C D C C / C | I/DL5RW/M | 1 | 0.02 % | | 1 | 0.01 % | | 48 | C D C C C D | N9CIQ8 | 1 | 0.02 % | | 1 | 0.01 % | | 49 | C / C D C C C | F/G0PZA | 1 | 0.02 % | | 1 | 0.01 % | | 50 | C C / D C D C C | OE/9A3MW | 1 | 0.02 % | | 1 | 0.01 % | | 51 | C D C C / C C D | N4DL/VY2 | 1 | 0.02 % | | 1 | 0.01 % | | 52 | C D C C C / D | K9QVB/9 | 1 | 0.02 % | | 1 | 0.01 % | | 53 | C C / C D C C C | OH/G1UZD | 1 | 0.02 % | | 2 | 0.02 % | | 54 | C C D C / C | OL5E/P | 1 | 0.02 % | | 1 | 0.01 % | | 55 | C C D C C C / C C D | OZ1KVM/GB3 | 1 | 0.02 % | | 1 | 0.01 % | | 56 | C C D C / C C D C C | PY0F/PY7RP | 1 | 0.02 % | | 2 | 0.02 % | | 57 | C C C D C C C | IQZ3NVR | 1 | 0.02 % | | 1 | 0.01 % | | 58 | C C D / C D D C C | IV9/S55OO | 1 | 0.02 % | | 1 | 0.01 % | | 59 | C C D D D D C C C | OE1000MDB | 1 | 0.02 % | | 1 | 0.01 % | | 60 | C D D C C / C C | S51TA/MM | 1 | 0.02 % | | 1 | 0.01 % | | 61 | C C D / C C D C C / | SM7/DO7EN/ | 1 | 0.02 % | | 1 | 0.01 % | | 62 | C D C C C C | W1WEIN | 1 | 0.02 % | | 1 | 0.01 % | | 63 | C D C C / C | W5ZA/M | 1 | 0.02 % | | 2 | 0.02 % | | 64 | C D C C C / C C D | W6PNG/VY2 | 1 | 0.02 % | | 2 | 0.02 % | | 65 | C C D C C / C C C | YU1LM/QRP | 1 | 0.02 % | | 1 | 0.01 % | |
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