| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 865 | 32.58 % | | 1527 | 33.81 % | | 2 | C C D C C C | CM8NMN | 648 | 24.41 % | | 925 | 20.48 % | | 3 | C C D C | AA1K | 356 | 13.41 % | | 663 | 14.68 % | | 4 | C D C C | B7HQ | 337 | 12.69 % | | 491 | 10.87 % | | 5 | C D C C C | F1AGR | 180 | 6.78 % | | 257 | 5.69 % | | 6 | C D D C | E70A | 96 | 3.62 % | | 335 | 7.42 % | | 7 | C D D C C | A47RS | 32 | 1.21 % | | 60 | 1.33 % | | 8 | D C D C C | 3B8CW | 28 | 1.05 % | | 63 | 1.39 % | | 9 | D C D C | 3Z0X | 13 | 0.49 % | | 20 | 0.44 % | | 10 | C D C | G3P | 12 | 0.45 % | | 37 | 0.82 % | | 11 | D C D C C C | 2E0EBT | 11 | 0.41 % | | 12 | 0.27 % | | 12 | C C D C C C / C | DK1TBL/P | 6 | 0.23 % | | 7 | 0.15 % | | 13 | C C / C C D C | DL/HG0R | 5 | 0.19 % | | 13 | 0.29 % | | 14 | C C / C C D C C C | DL/HB9DQL | 5 | 0.19 % | | 11 | 0.24 % | | 15 | C C / C D C C C | DL/G4IRN | 4 | 0.15 % | | 5 | 0.11 % | | 16 | C C / C C D C C | DL/EA7KW | 4 | 0.15 % | | 8 | 0.18 % | | 17 | C C / C D C C | DL/K5KG | 4 | 0.15 % | | 11 | 0.24 % | | 18 | C D D C C C | E72ASL | 4 | 0.15 % | | 5 | 0.11 % | | 19 | C C D C C / C C C | EA7TN/QRP | 3 | 0.11 % | | 3 | 0.07 % | | 20 | C C D C C / C | DJ4MM/P | 3 | 0.11 % | | 3 | 0.07 % | | 21 | C D C C C / C | F4GKR/P | 3 | 0.11 % | | 6 | 0.13 % | | 22 | C C D C C / C C | DG7LA/MM | 2 | 0.08 % | | 2 | 0.04 % | | 23 | C C D D D C C | OE100SP | 2 | 0.08 % | | 2 | 0.04 % | | 24 | C / C C D C C | F/PD1RP | 2 | 0.08 % | | 2 | 0.04 % | | 25 | C C D C / D | RT9T/3 | 2 | 0.08 % | | 3 | 0.07 % | | 26 | C C D C C / D | NU1AW/9 | 2 | 0.08 % | | 4 | 0.09 % | | 27 | C D C C / D | W1AW/4 | 2 | 0.08 % | | 3 | 0.07 % | | 28 | C C D D D C C C | OE100SPW | 2 | 0.08 % | | 4 | 0.09 % | | 29 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 2 | 0.04 % | | 30 | C C D / C C D C C C / C' | HB0/DK3RED/P | 1 | 0.04 % | | 1 | 0.02 % | | 31 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 3 | 0.07 % | | 32 | D C D C C / C | 9A6DR/P | 1 | 0.04 % | | 2 | 0.04 % | | 33 | C C D D C C | LM90HQ | 1 | 0.04 % | | 1 | 0.02 % | | 34 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.04 % | | 35 | D C / C C D C C C | 9A/DL5ROB | 1 | 0.04 % | | 1 | 0.02 % | | 36 | C D / C C D C C | I0/YO3XX | 1 | 0.04 % | | 1 | 0.02 % | | 37 | C C D C C C / C C D | IK2AIT/IV3 | 1 | 0.04 % | | 1 | 0.02 % | | 38 | C D D C C C C | J32FIFA | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C C D D C | OG55W | 1 | 0.04 % | | 6 | 0.13 % | | 40 | C C D D C C C | OH73ELK | 1 | 0.04 % | | 1 | 0.02 % | | 41 | C / C D C C | I/W9CF | 1 | 0.04 % | | 1 | 0.02 % | | 42 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 3 | 0.07 % | | 43 | C C D C / C | SE5Z/P | 1 | 0.04 % | | 1 | 0.02 % | | 44 | C C D C C C / C C | SP5LJP/MM | 1 | 0.04 % | | 1 | 0.02 % | | 45 | C C D / C C D C C C | SV8/HB9FIH | 1 | 0.04 % | | 1 | 0.02 % | | 46 | C C D D C C C C C | SX12ASTRO | 1 | 0.04 % | | 1 | 0.02 % | | 47 | C D C C / C C D | N4DL/VY2 | 1 | 0.04 % | | 1 | 0.02 % | | 48 | C C D / C C D C C | YO8/LZ4UU | 1 | 0.04 % | | 1 | 0.02 % | | 49 | C C D D D C | YR100R | 1 | 0.04 % | | 1 | 0.02 % | | 50 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % | | 2 | 0.04 % | |
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