| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 855 | 33.89 % | | 1618 | 34.92 % | | 2 | C C D C C C | CT1BOH | 616 | 24.42 % | | 945 | 20.39 % | | 3 | C C D C | AA1K | 351 | 13.91 % | | 694 | 14.98 % | | 4 | C D C C | B7HQ | 299 | 11.85 % | | 462 | 9.97 % | | 5 | C D C C C | F1AGR | 144 | 5.71 % | | 229 | 4.94 % | | 6 | C D D C | E70A | 95 | 3.77 % | | 358 | 7.73 % | | 7 | C D D C C | A44RS | 33 | 1.31 % | | 63 | 1.36 % | | 8 | D C D C C | 3V8CB | 27 | 1.07 % | | 58 | 1.25 % | | 9 | C D C | G3P | 14 | 0.55 % | | 41 | 0.88 % | | 10 | D C D C | 3Z0X | 11 | 0.44 % | | 23 | 0.50 % | | 11 | C C D C C / C | DJ4MM/P | 6 | 0.24 % | | 12 | 0.26 % | | 12 | C C / C C D C C | DL/EA7KW | 6 | 0.24 % | | 14 | 0.30 % | | 13 | C C / C D C C | DL/K1AR | 6 | 0.24 % | | 15 | 0.32 % | | 14 | C C / C C D C | DL/HG0R | 5 | 0.20 % | | 11 | 0.24 % | | 15 | C C D C C C / C | DG3LSM/P | 5 | 0.20 % | | 7 | 0.15 % | | 16 | C C D D D C C C | OE100CQB | 5 | 0.20 % | | 6 | 0.13 % | | 17 | C C / C D C C C | DL/G4IRN | 4 | 0.16 % | | 8 | 0.17 % | | 18 | D C D C C C | 5B4AJC | 4 | 0.16 % | | 4 | 0.09 % | | 19 | C D C C C / C | F4GKR/P | 3 | 0.12 % | | 4 | 0.09 % | | 20 | C C / C C D C C C | DL/HB9DQL | 3 | 0.12 % | | 8 | 0.17 % | | 21 | C C D D C | OG55W | 2 | 0.08 % | | 11 | 0.24 % | | 22 | C C D C C C / C C | DG7LAN/MM | 2 | 0.08 % | | 2 | 0.04 % | | 23 | C D D C C C | S56WYB | 2 | 0.08 % | | 2 | 0.04 % | | 24 | C / C C D C C | F/DF5RF | 2 | 0.08 % | | 3 | 0.06 % | | 25 | C C D C C / C C | RA0LQ/MM | 2 | 0.08 % | | 3 | 0.06 % | | 26 | C C D D C C C | OH73ELK | 2 | 0.08 % | | 2 | 0.04 % | | 27 | C C D C / D | RT9T/3 | 2 | 0.08 % | | 4 | 0.09 % | | 28 | C / C D C C C | F/G0PZA | 1 | 0.04 % | | 1 | 0.02 % | | 29 | C D D C C C C | J32FIFA | 1 | 0.04 % | | 1 | 0.02 % | | 30 | C C D C C / D | NU1AW/9 | 1 | 0.04 % | | 3 | 0.06 % | | 31 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.04 % | | 32 | C C D D D C C | OE100XA | 1 | 0.04 % | | 1 | 0.02 % | | 33 | C C D C C C C | DA0WRTC | 1 | 0.04 % | | 2 | 0.04 % | | 34 | D C D D D C | 3Z100K | 1 | 0.04 % | | 1 | 0.02 % | | 35 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 3 | 0.06 % | | 36 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 2 | 0.04 % | | 37 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 2 | 0.04 % | | 38 | C C D D C C | LM90HQ | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C C D / C C D C C | SV2/RW3AL | 1 | 0.04 % | | 1 | 0.02 % | | 40 | C C D / C D D C C | SV9/S55OO | 1 | 0.04 % | | 2 | 0.04 % | | 41 | C D C C / D | W1AW/4 | 1 | 0.04 % | | 1 | 0.02 % | | 42 | C D C C C / C C D | W6PNG/VY2 | 1 | 0.04 % | | 1 | 0.02 % | | 43 | C C D C C / C C C | YU1LM/QRP | 1 | 0.04 % | | 2 | 0.04 % | | 44 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % | | 1 | 0.02 % | |
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