| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA8CL | 895 | 32.40 % | | 1288 | 31.70 % | | 2 | C C D C C C | CM2RSV | 803 | 29.07 % | | 1068 | 26.29 % | | 3 | C C D C | AA7V | 557 | 20.17 % | | 1017 | 25.03 % | | 4 | C D C C C | C6AGU | 203 | 7.35 % | | 268 | 6.60 % | | 5 | C D C C | E7AR | 86 | 3.11 % | | 123 | 3.03 % | | 6 | C D D C | E72U | 44 | 1.59 % | | 62 | 1.53 % | | 7 | D C D C C | 4L6QL | 39 | 1.41 % | | 49 | 1.21 % | | 8 | C D C | B1Z | 38 | 1.38 % | | 59 | 1.45 % | | 9 | C D D C C | C56XA | 34 | 1.23 % | | 41 | 1.01 % | | 10 | D C D C | 3B8M | 26 | 0.94 % | | 40 | 0.98 % | | 11 | D C D C C C | 2E0INN | 4 | 0.14 % | | 5 | 0.12 % | | 12 | C C D / C D C C C | CT9/M0BLF | 3 | 0.11 % | | 5 | 0.12 % | | 13 | C C D D D D C C C | YT1914CER | 2 | 0.07 % | | 2 | 0.05 % | | 14 | C C D / C C D C | EA5/RV2A | 2 | 0.07 % | | 3 | 0.07 % | | 15 | C C D D C C C | DL70TRS | 2 | 0.07 % | | 3 | 0.07 % | | 16 | C D C C / D | N1TO/1 | 2 | 0.07 % | | 2 | 0.05 % | | 17 | C D D C C C | S51CAB | 2 | 0.07 % | | 3 | 0.07 % | | 18 | C C D D C C | OL70DG | 2 | 0.07 % | | 4 | 0.10 % | | 19 | C C D C C / C | UX1HR/A | 2 | 0.07 % | | 3 | 0.07 % | | 20 | D C / C C D C C | 4L/LY4ZZ | 1 | 0.04 % | | 1 | 0.02 % | | 21 | D C D D C C | 0L70OU | 1 | 0.04 % | | 1 | 0.02 % | | 22 | C C D C C C / C | IV3DPW/P | 1 | 0.04 % | | 1 | 0.02 % | | 23 | C / C C D C C | F/DJ4MZ | 1 | 0.04 % | | 1 | 0.02 % | | 24 | C C C D C | HFK1K | 1 | 0.04 % | | 1 | 0.02 % | | 25 | C C D / C C D C C | EA8/DL7AU | 1 | 0.04 % | | 1 | 0.02 % | | 26 | C C C C | EBCS | 1 | 0.04 % | | 1 | 0.02 % | | 27 | C C D D C C C C C C | PC19VACCIN | 1 | 0.04 % | | 1 | 0.02 % | | 28 | C C D C / D | RG5A/6 | 1 | 0.04 % | | 1 | 0.02 % | | 29 | C D / C D D C | I0/S58Y | 1 | 0.04 % | | 2 | 0.05 % | | 30 | C C D C C C / C C | UW5EJX/MM | 1 | 0.04 % | | 2 | 0.05 % | | 31 | C C D / C D C C | KH6/W0ZT | 1 | 0.04 % | | 1 | 0.02 % | | 32 | C C D C C C / D | WA8MDC/4 | 1 | 0.04 % | | 1 | 0.02 % | | 33 | C C D D D C C C | OE120BKC | 1 | 0.04 % | | 1 | 0.02 % | | 34 | C C D D D D C C | YT1914KL | 1 | 0.04 % | | 1 | 0.02 % | | 35 | C D / C D C C | Z3/K0AP | 1 | 0.04 % | | 1 | 0.02 % | |
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