| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BD1RCR | 930 | 30.03 % | | 1234 | 27.01 % | | 2 | C C D C C | AA4CF | 799 | 25.80 % | | 1142 | 25.00 % | | 3 | C C D C | AA2M | 686 | 22.15 % | | 1133 | 24.80 % | | 4 | C D C C | E7CW | 226 | 7.30 % | | 306 | 6.70 % | | 5 | C D C C C | C6AWA | 220 | 7.10 % | | 285 | 6.24 % | | 6 | C D D C | E70A | 46 | 1.49 % | | 65 | 1.42 % | | 7 | D C D C C | 3D2AG | 32 | 1.03 % | | 43 | 0.94 % | | 8 | C D D C C | A65CW | 26 | 0.84 % | | 42 | 0.92 % | | 9 | D C D C | 3W1T | 25 | 0.81 % | | 38 | 0.83 % | | 10 | C D C | B1Z | 20 | 0.65 % | | 27 | 0.59 % | | 11 | C C D D C C C | DL50DAH | 13 | 0.42 % | | 16 | 0.35 % | | 12 | D C D C C C | 2E0LMA | 12 | 0.39 % | | 19 | 0.42 % | | 13 | C C D D C | HF50F | 7 | 0.23 % | | 11 | 0.24 % | | 14 | C C D / C C D C C | CT8/DF2RQ | 5 | 0.16 % | | 7 | 0.15 % | | 15 | C D D C C C | E21YDP | 5 | 0.16 % | | 5 | 0.11 % | | 16 | C C / C C D C C | DL/LZ4AX | 4 | 0.13 % | | 5 | 0.11 % | | 17 | C D C C C / C | F5LVR/P | 3 | 0.10 % | | 4 | 0.09 % | | 18 | C C D D C C | OG50YL | 2 | 0.06 % | | 2 | 0.04 % | | 19 | C C D D C C C C C | DL17UBOOT | 2 | 0.06 % | | 5 | 0.11 % | | 20 | C C D C C / C C C | UT7NI/QRP | 2 | 0.06 % | | 7 | 0.15 % | | 21 | C C / C C D C C C | SP/DL1EKO | 2 | 0.06 % | | 4 | 0.09 % | | 22 | C C D / C C D C | EA8/EA5Y | 2 | 0.06 % | | 2 | 0.04 % | | 23 | C C D / C D C C | HB9/F2QH | 2 | 0.06 % | | 2 | 0.04 % | | 24 | C C D C C C / C | PA0GJV/P | 2 | 0.06 % | | 2 | 0.04 % | | 25 | C C D D D C C | DM775NB | 1 | 0.03 % | | 1 | 0.02 % | | 26 | C C D C / C C D | AB2E/VP9 | 1 | 0.03 % | | 2 | 0.04 % | | 27 | D C / C C D C C | 5B/HA5PP | 1 | 0.03 % | | 3 | 0.07 % | | 28 | C / C D D C | F/E72T | 1 | 0.03 % | | 1 | 0.02 % | | 29 | D C D C C C / D | 7K1MAG/2 | 1 | 0.03 % | | 1 | 0.02 % | | 30 | D C D D C C | 8S80AA | 1 | 0.03 % | | 1 | 0.02 % | | 31 | D C D D C | 9A30T | 1 | 0.03 % | | 1 | 0.02 % | | 32 | C C D C C C C | HG4FULE | 1 | 0.03 % | | 1 | 0.02 % | | 33 | C D / C C D C C | I2/UY2ZA | 1 | 0.03 % | | 1 | 0.02 % | | 34 | C C D C C C / C C C | IU2ECB/QRP | 1 | 0.03 % | | 1 | 0.02 % | | 35 | C D C C / C C D | K2NV/VE3 | 1 | 0.03 % | | 1 | 0.02 % | | 36 | C C D C C C / D | KB1EFS/2 | 1 | 0.03 % | | 2 | 0.04 % | | 37 | C C D D D C | LA100K | 1 | 0.03 % | | 1 | 0.02 % | | 38 | D C D D D C C | 4K100HA | 1 | 0.03 % | | 2 | 0.04 % | | 39 | C C / C C D C C / C | OK/DL3JJ/P | 1 | 0.03 % | | 1 | 0.02 % | | 40 | C C D D D C C C | OL750HOL | 1 | 0.03 % | | 3 | 0.07 % | | 41 | C C D C / C | OO7Z/P | 1 | 0.03 % | | 1 | 0.02 % | | 42 | D C / C C D C C C | 9A/IZ3NVR | 1 | 0.03 % | | 1 | 0.02 % | | 43 | C C D C / C C | RD1A/MM | 1 | 0.03 % | | 1 | 0.02 % | | 44 | C C D C C / C | DL6KW/P | 1 | 0.03 % | | 1 | 0.02 % | | 45 | C C D / C C D C C C | SP1/DL1EKO | 1 | 0.03 % | | 1 | 0.02 % | | 46 | C C D C / D | UA5B/4 | 1 | 0.03 % | | 1 | 0.02 % | | 47 | C D / C D D C | E7/Z35M | 1 | 0.03 % | | 3 | 0.07 % | | 48 | C D D D D C C | Z3100TC | 1 | 0.03 % | | 1 | 0.02 % | |
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