|  |  Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C | AA1ON | 853 | 32.67 % |  | 1546 | 33.77 % |  |  | 2 | C C D C C C | CT1BOH | 663 | 25.39 % |  | 945 | 20.64 % |  |  | 3 | C C D C | AA1K | 361 | 13.83 % |  | 701 | 15.31 % |  |  | 4 | C D C C | D1HQ | 299 | 11.45 % |  | 460 | 10.05 % |  |  | 5 | C D C C C | F1AGR | 158 | 6.05 % |  | 224 | 4.89 % |  |  | 6 | C D D C | E72U | 93 | 3.56 % |  | 369 | 8.06 % |  |  | 7 | D C D C C | 3V8CB | 34 | 1.30 % |  | 60 | 1.31 % |  |  | 8 | C D D C C | A65DC | 30 | 1.15 % |  | 65 | 1.42 % |  |  | 9 | C D C | C4W | 15 | 0.57 % |  | 40 | 0.87 % |  |  | 10 | D C D C | 3Z0X | 14 | 0.54 % |  | 23 | 0.50 % |  |  | 11 | C C D C C / C | DG1PM/M | 8 | 0.31 % |  | 15 | 0.33 % |  |  | 12 | D C D C C C | 2E0FTD | 8 | 0.31 % |  | 8 | 0.17 % |  |  | 13 | C C D C C C / C | DK1TBL/P | 8 | 0.31 % |  | 9 | 0.20 % |  |  | 14 | C C / C C D C C C | DL/HB9DQL | 6 | 0.23 % |  | 9 | 0.20 % |  |  | 15 | C D C C C / C | F4GKR/P | 5 | 0.19 % |  | 7 | 0.15 % |  |  | 16 | C C / C C D C C | DL/OZ1AA | 5 | 0.19 % |  | 10 | 0.22 % |  |  | 17 | C C / C C D C | DL/HG0R | 4 | 0.15 % |  | 9 | 0.20 % |  |  | 18 | C C / C D C C | DL/K1AR | 4 | 0.15 % |  | 12 | 0.26 % |  |  | 19 | C C D D D C C C | OE100RAD | 3 | 0.11 % |  | 4 | 0.09 % |  |  | 20 | C C D C C / D | NU1AW/9 | 3 | 0.11 % |  | 4 | 0.09 % |  |  | 21 | C C D / C C D C C | EA6/DK5ON | 3 | 0.11 % |  | 5 | 0.11 % |  |  | 22 | C C D C C C / C C | DG7LAN/MM | 2 | 0.08 % |  | 2 | 0.04 % |  |  | 23 | C C D C C / C C | RA0LQ/MM | 2 | 0.08 % |  | 3 | 0.07 % |  |  | 24 | C D D C C C | S56WYB | 2 | 0.08 % |  | 3 | 0.07 % |  |  | 25 | C C / C D C C C | DL/I4VEQ | 2 | 0.08 % |  | 4 | 0.09 % |  |  | 26 | C C D D C | OG55W | 2 | 0.08 % |  | 8 | 0.17 % |  |  | 27 | C D C C / D | W1AW/4 | 2 | 0.08 % |  | 4 | 0.09 % |  |  | 28 | C C D C / D | RT9T/3 | 2 | 0.08 % |  | 2 | 0.04 % |  |  | 29 | C / C C D C C | F/DF5RF | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 30 | D C / C C D C | 4L/RC5A | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 31 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % |  | 2 | 0.04 % |  |  | 32 | D C D D D C | 3Z100K | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 33 | C D / C C D C C | I0/YO3XX | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 34 | D C D C C / C C C | 9A4OP/QRP | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 35 | C C D D C C C C | LM90NRRL | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 36 | C C D C C C / C C C | EA7AAW/QRP | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 37 | C C D C C C C | DA0WRTC | 1 | 0.04 % |  | 3 | 0.07 % |  |  | 38 | C C D C / C | OL5E/P | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 39 | C C D D C C C | OV18FVC | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 40 | C C D / C C D C C C / C' | HB0/DK3RED/P | 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 % |  | 2 | 0.04 % |  |  | 43 | C C D D C C | LM90HQ | 1 | 0.04 % |  | 2 | 0.04 % |  |  | 44 | C C D D C C C C C | SX12ASTRO | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 45 | C C D C / C C D | NP4G/KP2 | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 46 | C C D D D C | YR100R | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 47 | C C D C C / C C C | YU1LM/QRP | 1 | 0.04 % |  | 3 | 0.07 % |  |  | 48 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % |  | 1 | 0.02 % |  | 
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