|  Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C  | AA4AK | 908 | 34.49 % |  | 1630 | 36.52 % |  |  | 2 | C C D C C C  | CM8NMN | 668 | 25.37 % |  | 992 | 22.23 % |  |  | 3 | C C D C  | AA1K | 345 | 13.10 % |  | 652 | 14.61 % |  |  | 4 | C D C C  | D1HQ | 295 | 11.20 % |  | 441 | 9.88 % |  |  | 5 | C D C C C  | F1AGR | 166 | 6.30 % |  | 247 | 5.53 % |  |  | 6 | C D D C  | E73A | 89 | 3.38 % |  | 235 | 5.27 % |  |  | 7 | C D D C C  | A47RS | 30 | 1.14 % |  | 49 | 1.10 % |  |  | 8 | D C D C C  | 4M5EN | 26 | 0.99 % |  | 47 | 1.05 % |  |  | 9 | C D C  | G3P | 16 | 0.61 % |  | 34 | 0.76 % |  |  | 10 | D C D C  | 3Z0X | 14 | 0.53 % |  | 24 | 0.54 % |  |  | 11 | D C D C C C  | 2E0AOZ | 7 | 0.27 % |  | 7 | 0.16 % |  |  | 12 | C C D C C C / C  | DL1DWW/P | 6 | 0.23 % |  | 7 | 0.16 % |  |  | 13 | C C / C C D C C  | DL/EA7KW | 5 | 0.19 % |  | 8 | 0.18 % |  |  | 14 | C C D C C / C  | DB8TA/P | 4 | 0.15 % |  | 5 | 0.11 % |  |  | 15 | C C / C D C C  | DL/K9NW | 4 | 0.15 % |  | 7 | 0.16 % |  |  | 16 | C D C C C / C  | F4GKR/P | 4 | 0.15 % |  | 9 | 0.20 % |  |  | 17 | C C D D D C C C  | OE100RAD | 4 | 0.15 % |  | 5 | 0.11 % |  |  | 18 | C C / C C D C C C  | DL/HB9DQL | 4 | 0.15 % |  | 8 | 0.18 % |  |  | 19 | C C / C C D C  | DL/HG0R | 3 | 0.11 % |  | 4 | 0.09 % |  |  | 20 | C C D / C C D C C  | EA6/DK5ON | 3 | 0.11 % |  | 3 | 0.07 % |  |  | 21 | C C / C D C C C  | DL/I4VEQ | 3 | 0.11 % |  | 4 | 0.09 % |  |  | 22 | C C D C / D  | RG5A/6 | 3 | 0.11 % |  | 4 | 0.09 % |  |  | 23 | C C D C C C / C C  | DG7LAN/MM | 2 | 0.08 % |  | 2 | 0.04 % |  |  | 24 | C C D C C / C C  | RA0LQ/MM | 2 | 0.08 % |  | 2 | 0.04 % |  |  | 25 | C C D C C / D  | NU1AW/9 | 2 | 0.08 % |  | 4 | 0.09 % |  |  | 26 | C C D D C  | OG55W | 2 | 0.08 % |  | 8 | 0.18 % |  |  | 27 | C D D C C C  | S56WYB | 2 | 0.08 % |  | 3 | 0.07 % |  |  | 28 | C C D D D C C  | DL100BY | 2 | 0.08 % |  | 3 | 0.07 % |  |  | 29 | C C D C C C C  | DA0WRTC | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 30 | C D / C C D C C  | I0/YO3XX | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 31 | D C / C C D C  | 4L/RC5A | 1 | 0.04 % |  | 2 | 0.04 % |  |  | 32 | D C / C C D C C C  | 9A/DL5ROB | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 33 | C C D C / C  | OL5E/P | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 34 | C C D D C C C  | OV18FWC | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 35 | C C D C / C C D C C  | PY0F/PY7RP | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 36 | D C / C D D C C  | 9A/S57KM | 1 | 0.04 % |  | 3 | 0.07 % |  |  | 37 | D C D C C / C  | 9A6DR/P | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 38 | C D D C C / C C  | S51TA/MM | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 39 | C C D D C C C C  | LM90NRRL | 1 | 0.04 % |  | 3 | 0.07 % |  |  | 40 | C D C C / D  | W1AW/4 | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 41 | C D C C C / C C D  | W6PNG/VY2 | 1 | 0.04 % |  | 1 | 0.02 % |  |  | 42 | C C D D D C  | YR100R | 1 | 0.04 % |  | 1 | 0.02 % |  |  
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