| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 831 | 34.99 % | | 1433 | 36.45 % | | 2 | C C D C C C | CT1BOH | 585 | 24.63 % | | 819 | 20.83 % | | 3 | C C D C | AA1V | 325 | 13.68 % | | 622 | 15.82 % | | 4 | C D C C | B7HQ | 273 | 11.49 % | | 397 | 10.10 % | | 5 | C D C C C | F1RAF | 134 | 5.64 % | | 195 | 4.96 % | | 6 | C D D C | E70A | 83 | 3.49 % | | 226 | 5.75 % | | 7 | C D D C C | A47RS | 26 | 1.09 % | | 48 | 1.22 % | | 8 | D C D C C | 4O1HQ | 23 | 0.97 % | | 45 | 1.14 % | | 9 | D C D C | 3Z0X | 17 | 0.72 % | | 22 | 0.56 % | | 10 | C D C | G3P | 15 | 0.63 % | | 34 | 0.86 % | | 11 | C C / C C D C C | DL/EA7KW | 6 | 0.25 % | | 8 | 0.20 % | | 12 | C C D C C / C | DF3YG/P | 6 | 0.25 % | | 8 | 0.20 % | | 13 | C C D C C C / C | DK1TBL/P | 5 | 0.21 % | | 5 | 0.13 % | | 14 | C C D D D C C C | OE100RAD | 4 | 0.17 % | | 4 | 0.10 % | | 15 | C C / C C D C | DL/LY4Y | 4 | 0.17 % | | 6 | 0.15 % | | 16 | C C / C D C C | DL/K5NA | 3 | 0.13 % | | 7 | 0.18 % | | 17 | C C / C C D C C C | DL/HB9DQL | 3 | 0.13 % | | 4 | 0.10 % | | 18 | D C D C C C | 7K1MAG | 3 | 0.13 % | | 3 | 0.08 % | | 19 | C D C C C / C | F8BJE/P | 3 | 0.13 % | | 3 | 0.08 % | | 20 | C C D D C | OG55W | 2 | 0.08 % | | 9 | 0.23 % | | 21 | C C / C D C C C | DL/I4UFH | 2 | 0.08 % | | 3 | 0.08 % | | 22 | C D D C C C | D21YFK | 2 | 0.08 % | | 3 | 0.08 % | | 23 | C C D C C / C C | YL3IZ/MM | 2 | 0.08 % | | 2 | 0.05 % | | 24 | C C D D D C C | DL100BY | 2 | 0.08 % | | 2 | 0.05 % | | 25 | C C D C / D | RG5A/6 | 2 | 0.08 % | | 2 | 0.05 % | | 26 | C D C C / D | W1AW/4 | 2 | 0.08 % | | 3 | 0.08 % | | 27 | C C D C C C C | DA0WRTC | 1 | 0.04 % | | 1 | 0.03 % | | 28 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 1 | 0.03 % | | 29 | C C / C D D C C C | DL/S59DQL | 1 | 0.04 % | | 1 | 0.03 % | | 30 | C C D D C C C | OV18FWC | 1 | 0.04 % | | 1 | 0.03 % | | 31 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 3 | 0.08 % | | 32 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 2 | 0.05 % | | 33 | C C D C C C / C C | SP5LJP/MM | 1 | 0.04 % | | 1 | 0.03 % | | 34 | C C D / C C D C C | SV2/RW3AL | 1 | 0.04 % | | 1 | 0.03 % | | 35 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 1 | 0.03 % | | 36 | C C D C C / D | NU1AW/9 | 1 | 0.04 % | | 4 | 0.10 % | | 37 | C C D C C / C C C | YU1LM/QRP | 1 | 0.04 % | | 1 | 0.03 % | | 38 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % | | 1 | 0.03 % | |
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