| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | AO1IBR | 2812 | 30.40 % | | 4677 | 5.00 % | | 2 | C C D C C | AA1AC | 2315 | 25.03 % | | 4063 | 4.34 % | | 3 | C D C C C | A4UCW | 1177 | 12.73 % | | 1764 | 1.89 % | | 4 | C C D C | AA0Z | 806 | 8.71 % | | 1463 | 1.56 % | | 5 | C D C C | A6HX | 788 | 8.52 % | | 1405 | 1.50 % | | 6 | C C D C C C / C | CT7ABE/P | 229 | 2.48 % | | 333 | 0.36 % | | 7 | C C D C C / C | DA0CW/P | 126 | 1.36 % | | 203 | 0.22 % | | 8 | D C D C C | 3A2OC | 101 | 1.09 % | | 197 | 0.21 % | | 9 | C D C C C / C | F0DUB/P | 74 | 0.80 % | | 89 | 0.10 % | | 10 | C D C | C4Y | 71 | 0.77 % | | 101 | 0.11 % | | 11 | C D D C C | A47RS | 65 | 0.70 % | | 128 | 0.14 % | | 12 | C D D C | A61Q | 53 | 0.57 % | | 110 | 0.12 % | | 13 | D C D C C C | 2E0ANM | 39 | 0.42 % | | 59 | 0.06 % | | 14 | C C D C / C | AJ1G/M | 34 | 0.37 % | | 57 | 0.06 % | | 15 | C C D C C C C | AF5JMST | 30 | 0.32 % | | 55 | 0.06 % | | 16 | D C D C | 3B7M | 29 | 0.31 % | | 43 | 0.05 % | | 17 | C C D D C C C | DE39HKM | 29 | 0.31 % | | 67 | 0.07 % | | 18 | C C D C C C / C C C | CT1EYQ/QRP | 26 | 0.28 % | | 29 | 0.03 % | | 19 | C C D / C C D C C C | CT7/PA3GCU | 24 | 0.26 % | | 45 | 0.05 % | | 20 | C C / C C D C C | DL/HA8PG | 24 | 0.26 % | | 31 | 0.03 % | | 21 | C C / C C D C C C / C | DL/HB9BIN/P | 24 | 0.26 % | | 33 | 0.04 % | | 22 | C D C C / C | N2KW/M | 21 | 0.23 % | | 39 | 0.04 % | | 23 | C C / C C D C C C | DL/SP9MAX | 21 | 0.23 % | | 39 | 0.04 % | | 24 | C C D C C / C C C | DF4JH/QRP | 20 | 0.22 % | | 21 | 0.02 % | | 25 | C C D C C / D | DF2OS/3 | 19 | 0.21 % | | 33 | 0.04 % | | 26 | C C D C C C / D | EA5HUS/1 | 18 | 0.19 % | | 25 | 0.03 % | | 27 | C C D / C C D C C | CT7/VA3FH | 14 | 0.15 % | | 30 | 0.03 % | | 28 | C C / C C D C C / C | DL/OK1DU/P | 13 | 0.14 % | | 14 | 0.01 % | | 29 | C C D D D C C | CQ100TS | 12 | 0.13 % | | 33 | 0.04 % | | 30 | C D C C C / C C C | F5FAB/QRP | 11 | 0.12 % | | 14 | 0.01 % | | 31 | C D / C C D C C C | E7/OE1JUN | 10 | 0.11 % | | 13 | 0.01 % | | 32 | C D C C / D | I1UJ/8 | 10 | 0.11 % | | 22 | 0.02 % | | 33 | C / C C D C C | F/DF5QG | 8 | 0.09 % | | 9 | 0.01 % | | 34 | C D D C C C | E21EIC | 8 | 0.09 % | | 15 | 0.02 % | | 35 | C C D D C C | CQ50CE | 7 | 0.08 % | | 20 | 0.02 % | | 36 | D C / C C D C C C | 9A/GW4UWD | 7 | 0.08 % | | 14 | 0.01 % | | 37 | C D C C C / D | I1ULJ/8 | 6 | 0.06 % | | 12 | 0.01 % | | 38 | C C D D D C C C | EF150SAR | 6 | 0.06 % | | 13 | 0.01 % | | 39 | C / C C D C C C / C | F/DL1KBA/P | 5 | 0.05 % | | 5 | 0.01 % | | 40 | C C D / C D C C C | EA5/G4HZJ | 5 | 0.05 % | | 8 | 0.01 % | | 41 | C C D D C C C C | DM23BUGA | 5 | 0.05 % | | 10 | 0.01 % | | 42 | C D D D C C | R100DG | 5 | 0.05 % | | 11 | 0.01 % | | 43 | C C D C C C / C C | DL6MLA/MM | 5 | 0.05 % | | 7 | 0.01 % | | 44 | C D D C C / C | A41CC/M | 5 | 0.05 % | | 9 | 0.01 % | | 45 | C / C C D C C / C | F/ON4JM/P | 4 | 0.04 % | | 4 | 0.00 % | | 46 | D C D C C / C | 8R1AK/P | 4 | 0.04 % | | 4 | 0.00 % | | 47 | D C D D C | 4X01G | 4 | 0.04 % | | 5 | 0.01 % | | 48 | C / C C D C C C | F/DL5MAY | 4 | 0.04 % | | 8 | 0.01 % | | 49 | C D C C C / C C | F6DAT/MM | 4 | 0.04 % | | 5 | 0.01 % | | 50 | C C D C / C C D | VC3K/VE1 | 4 | 0.04 % | | 8 | 0.01 % | | 51 | D C D C C C / C | 2E0DYH/P | 3 | 0.03 % | | 3 | 0.00 % | | 52 | C C D / C C D C | CU8/NU6F | 3 | 0.03 % | | 7 | 0.01 % | | 53 | C C D / C C D C C C / EA3/HB9CMI/P | 3 | 0.03 % | | 4 | 0.00 % | | | 54 | C / C D C C C | I/G4DNE | 3 | 0.03 % | | 3 | 0.00 % | | 55 | C C / C D C C C | DL/I1SAF | 3 | 0.03 % | | 3 | 0.00 % | | 56 | C C / C C D C | LA/LY2L | 3 | 0.03 % | | 3 | 0.00 % | | 57 | C C D / C D C C C / C | EA6/F8CZI/P | 3 | 0.03 % | | 3 | 0.00 % | | 58 | C D D C / C | S54X/P | 3 | 0.03 % | | 5 | 0.01 % | | 59 | C C D / C C D C C / C | EA6/OM2JU/P | 3 | 0.03 % | | 5 | 0.01 % | | 60 | C C D C C C C C C | LK6JUVECQ | 3 | 0.03 % | | 3 | 0.00 % | | 61 | C C D D C | OG60W | 3 | 0.03 % | | 5 | 0.01 % | | 62 | C C D / C D C C | EA3/K0PC | 3 | 0.03 % | | 3 | 0.00 % | | 63 | D C / C C D C C | 9A/DK9GE | 3 | 0.03 % | | 4 | 0.00 % | | 64 | D C / C D C C C | 9A/F4IEY | 3 | 0.03 % | | 6 | 0.01 % | | 65 | C D / C D C C C | I5/W4DBJ | 3 | 0.03 % | | 3 | 0.00 % | | 66 | C C D C / D | RC2O/6 | 3 | 0.03 % | | 5 | 0.01 % | | 67 | D C / C D D C C / C | 9A/E77DX/P | 3 | 0.03 % | | 5 | 0.01 % | | 68 | D C D C / C | 4O4A/P | 3 | 0.03 % | | 5 | 0.01 % | | 69 | C C D D D C C C C | HF800NYSA | 2 | 0.02 % | | 2 | 0.00 % | | 70 | C D / C D C C | I1/K6JS | 2 | 0.02 % | | 2 | 0.00 % | | 71 | D C / C D D C C | 9A/E77DX | 2 | 0.02 % | | 2 | 0.00 % | | 72 | C C / C D C C | TF/K1XX | 2 | 0.02 % | | 2 | 0.00 % | | 73 | C C / C C D C / C | OK/SO6K/P | 2 | 0.02 % | | 2 | 0.00 % | | 74 | C C D D C C C C C C | DR60WUNDER | 2 | 0.02 % | | 2 | 0.00 % | | 75 | C C D C C C / C D | VE2PID/W3 | 2 | 0.02 % | | 3 | 0.00 % | | 76 | C D C / C | T6A/P | 2 | 0.02 % | | 2 | 0.00 % | | 77 | C C D C C C C C | YU7ADYXP | 2 | 0.02 % | | 2 | 0.00 % | | 78 | D C / C C D C C C / C 9A/OE3TBU/MM | 1 | 0.01 % | | 1 | 0.00 % | | | 79 | C / C C D C / C | F/EA3O/P | 1 | 0.01 % | | 1 | 0.00 % | | 80 | C D C C C / C C D | K2EAG/VE3 | 1 | 0.01 % | | 1 | 0.00 % | | 81 | D C D D C C | 8S80AA | 1 | 0.01 % | | 2 | 0.00 % | | 82 | C D C C C / C C C / C | F4IGG/QRP/P | 1 | 0.01 % | | 1 | 0.00 % | | 83 | D C / C D D C C / C C | 9A/E77DX/MM | 1 | 0.01 % | | 1 | 0.00 % | | 84 | C D D D C C C | E750ESP | 1 | 0.01 % | | 3 | 0.00 % | | 85 | C C D D D D C | HF4112P | 1 | 0.01 % | | 1 | 0.00 % | | 86 | C C D / C D D C C | IS0/S50TT | 1 | 0.01 % | | 1 | 0.00 % | | 87 | C D C C / C C C | N0UR/QRP | 1 | 0.01 % | | 1 | 0.00 % | | 88 | C C / C D C | EE/T5T | 1 | 0.01 % | | 1 | 0.00 % | | 89 | D C D D C C C | 4K50DHC | 1 | 0.01 % | | 2 | 0.00 % | | 90 | C C D D D C | LY787A | 1 | 0.01 % | | 2 | 0.00 % | | 91 | C C / C D C C C / C | DL/F8CZI/P | 1 | 0.01 % | | 1 | 0.00 % | | 92 | C C / D C D C C | LZ/9A7RA | 1 | 0.01 % | | 1 | 0.00 % | | 93 | C D C C C C C | R1CUAFM | 1 | 0.01 % | | 1 | 0.00 % | | 94 | D C / D C D C C | 9A/4X6FB | 1 | 0.01 % | | 1 | 0.00 % | | 95 | C C D C / C D | RC2O/T5 | 1 | 0.01 % | | 2 | 0.00 % | | 96 | C D / C D D C C | S5/E70AW | 1 | 0.01 % | | 1 | 0.00 % | | 97 | C D / C C D C C C / C | S5/HB9HNT/P | 1 | 0.01 % | | 1 | 0.00 % | | 98 | C D D D C C C C | S515SOTA | 1 | 0.01 % | | 1 | 0.00 % | | 99 | C D D C C / C C | S51TA/MM | 1 | 0.01 % | | 2 | 0.00 % | | 100 | C C D C C / C C C C | LZ2RS/QRPP | 1 | 0.01 % | | 1 | 0.00 % | | 101 | C C D / D C D C C | SV8/4X4WN | 1 | 0.01 % | | 2 | 0.00 % | | 102 | D C / C C D C C C / C | 9A/OK1DOY/P | 1 | 0.01 % | | 1 | 0.00 % | | 103 | D C / C C D C | 9H/OO4M | 1 | 0.01 % | | 1 | 0.00 % | | 104 | C C D C / C C D C | UF6V/UA5D | 1 | 0.01 % | | 1 | 0.00 % | | 105 | C C D D C C C / C | PA44WFF/P | 1 | 0.01 % | | 1 | 0.00 % | | 106 | C C D C C / C C | IQ2CP/BG | 1 | 0.01 % | | 1 | 0.00 % | | 107 | C C D C C / C C D | VE7OM/VO1 | 1 | 0.01 % | | 1 | 0.00 % | | 108 | C D C C / C C | W0VX/DA | 1 | 0.01 % | | 1 | 0.00 % | | 109 | C D C / C C | W1E/EL | 1 | 0.01 % | | 1 | 0.00 % | | 110 | C C D D D D C C C C C | YR2023SIMPO | 1 | 0.01 % | | 5 | 0.01 % | | 111 | C C D C / C C C | YT3T/QRP | 1 | 0.01 % | | 1 | 0.00 % | | 112 | C C / D C D C C C | LZ/9A3BCW | 1 | 0.01 % | | 1 | 0.00 % | | 113 | C C / C D D C | ZA/S59A | 1 | 0.01 % | | 4 | 0.00 % | |
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