| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BD1IIJ | 378 | 33.54 % | | 420 | 32.99 % | | 2 | C C D C C | AC7GG | 292 | 25.91 % | | 328 | 25.77 % | | 3 | C C D C | AF6O | 267 | 23.69 % | | 313 | 24.59 % | | 4 | C D C C | D1DX | 51 | 4.53 % | | 55 | 4.32 % | | 5 | C D C C C | F4VSQ | 26 | 2.31 % | | 27 | 2.12 % | | 6 | C D D C | E74Y | 18 | 1.60 % | | 19 | 1.49 % | | 7 | C D D C C | A45XR | 14 | 1.24 % | | 14 | 1.10 % | | 8 | D C D C C | 4F3BZ | 13 | 1.15 % | | 16 | 1.26 % | | 9 | D C D C C C | 7K1VKU | 11 | 0.98 % | | 11 | 0.86 % | | 10 | C C D C C C / D | JA2DGQ/3 | 10 | 0.89 % | | 12 | 0.94 % | | 11 | D C D C | 4D3X | 9 | 0.80 % | | 12 | 0.94 % | | 12 | C D D C C C | E20HHK | 7 | 0.62 % | | 9 | 0.71 % | | 13 | C D C | B4T | 7 | 0.62 % | | 9 | 0.71 % | | 14 | C C D D C C C | DF13MUC | 4 | 0.35 % | | 4 | 0.31 % | | 15 | C C D D C | AM70C | 3 | 0.27 % | | 3 | 0.24 % | | 16 | C C D C C / D | BG9XD/7 | 2 | 0.18 % | | 4 | 0.31 % | | 17 | C D C C / D | R2ET/9 | 2 | 0.18 % | | 2 | 0.16 % | | 18 | C C D C C C / C C C | BH4RRG/QRP | 2 | 0.18 % | | 3 | 0.24 % | | 19 | D C D C C C / D | 7K1MAG/2 | 1 | 0.09 % | | 1 | 0.08 % | | 20 | D C D D C | 4U73B | 1 | 0.09 % | | 1 | 0.08 % | | 21 | D C / C C D C C | 5B/RN3QO | 1 | 0.09 % | | 1 | 0.08 % | | 22 | C C D D C C | HA01FF | 1 | 0.09 % | | 1 | 0.08 % | | 23 | C C / C C D C C C | HL/OE1HFC | 1 | 0.09 % | | 1 | 0.08 % | | 24 | C C D / C C D C C | DV8/KH7EA | 1 | 0.09 % | | 1 | 0.08 % | | 25 | C C D / C C D C | KH0/KC0W | 1 | 0.09 % | | 1 | 0.08 % | | 26 | C C D D D C C C | LY800SMG | 1 | 0.09 % | | 2 | 0.16 % | | 27 | C / C C D C C C | F/PA2JWN | 1 | 0.09 % | | 1 | 0.08 % | | 28 | C D D D C | S573G | 1 | 0.09 % | | 1 | 0.08 % | | 29 | C C D / C C D C C C | SV5/DL3DRN | 1 | 0.09 % | | 1 | 0.08 % | |
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