| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BD6AHP | 1154 | 31.27 % | | 1642 | 26.46 % | | 2 | C C D C C | AA0AI | 1085 | 29.40 % | | 1994 | 32.13 % | | 3 | C C D C | AA3I | 482 | 13.06 % | | 1072 | 17.27 % | | 4 | C D C C C | D1CTT | 397 | 10.76 % | | 510 | 8.22 % | | 5 | C D C C | B9HQ | 308 | 8.34 % | | 534 | 8.60 % | | 6 | C D D C C | A41NN | 54 | 1.46 % | | 99 | 1.60 % | | 7 | D C D C C | 4L6QC | 32 | 0.87 % | | 63 | 1.02 % | | 8 | D C D C C C | 2E0AOZ | 26 | 0.70 % | | 33 | 0.53 % | | 9 | C D D C | E70A | 23 | 0.62 % | | 43 | 0.69 % | | 10 | C C D C C C / C | DC1TRX/P | 17 | 0.46 % | | 21 | 0.34 % | | 11 | C D C | B1B | 14 | 0.38 % | | 35 | 0.56 % | | 12 | C C D C C / C | DF3YG/P | 9 | 0.24 % | | 10 | 0.16 % | | 13 | D C D C | 3Z1K | 9 | 0.24 % | | 18 | 0.29 % | | 14 | C D D C C C | E20NGF | 8 | 0.22 % | | 14 | 0.23 % | | 15 | C D C C C / C | F1BOH/P | 7 | 0.19 % | | 7 | 0.11 % | | 16 | C C D D D C | EH950O | 5 | 0.14 % | | 8 | 0.13 % | | 17 | C C / C C D C C C | OZ/SP2UUU | 4 | 0.11 % | | 8 | 0.13 % | | 18 | C C D D D C C | LY764KM | 4 | 0.11 % | | 13 | 0.21 % | | 19 | C C D C C / D | NU1AW/5 | 4 | 0.11 % | | 6 | 0.10 % | | 20 | C D C C / D | K3MD/1 | 4 | 0.11 % | | 8 | 0.13 % | | 21 | C C / C C D C C | OE/DJ0FR | 3 | 0.08 % | | 3 | 0.05 % | | 22 | D C / C C D C C C | 9A/DM5JBN | 3 | 0.08 % | | 6 | 0.10 % | | 23 | C C D C C / C C C | DJ0PM/QRP | 3 | 0.08 % | | 5 | 0.08 % | | 24 | C C D C / D | RG0F/5 | 3 | 0.08 % | | 6 | 0.10 % | | 25 | C C D / C C D C C | EA5/DK5IM | 3 | 0.08 % | | 7 | 0.11 % | | 26 | C C D / C C D C | PJ7/NF4U | 2 | 0.05 % | | 3 | 0.05 % | | 27 | C C D D C C | ES17EU | 2 | 0.05 % | | 5 | 0.08 % | | 28 | C C D C C C / C C C | GA2CHM/QRP | 2 | 0.05 % | | 2 | 0.03 % | | 29 | C C D D C | OG55W | 2 | 0.05 % | | 6 | 0.10 % | | 30 | C D C C / C C D | K2NV/VE3 | 2 | 0.05 % | | 2 | 0.03 % | | 31 | C C D / C C D C C C | EA5/MM0GOR | 2 | 0.05 % | | 2 | 0.03 % | | 32 | C C D C C C / D | JA4XHF/3 | 2 | 0.05 % | | 2 | 0.03 % | | 33 | D C C C | 5BES | 1 | 0.03 % | | 1 | 0.02 % | | 34 | C C D D C C C | HA60KNA | 1 | 0.03 % | | 1 | 0.02 % | | 35 | C C D C / C | EW4R/P | 1 | 0.03 % | | 1 | 0.02 % | | 36 | C C / C D C C C | HA/R2DAW | 1 | 0.03 % | | 1 | 0.02 % | | 37 | D C D C C / C | 9A3SM/P | 1 | 0.03 % | | 1 | 0.02 % | | 38 | C / C D C C C | F/G4BJM | 1 | 0.03 % | | 2 | 0.03 % | | 39 | C D C C / C C C | N3SY/QRP | 1 | 0.03 % | | 1 | 0.02 % | | 40 | C D C C / C | G6UT/P | 1 | 0.03 % | | 1 | 0.02 % | | 41 | C C / C D C C C / C | DL/F4EPU/P | 1 | 0.03 % | | 1 | 0.02 % | | 42 | C C / C C D C / C | DL/OT6V/P | 1 | 0.03 % | | 1 | 0.02 % | | 43 | C D D D D C | R1255F | 1 | 0.03 % | | 2 | 0.03 % | | 44 | D C / C C D C C | 9A/YO6ZS | 1 | 0.03 % | | 1 | 0.02 % | | 45 | C C D / C D D C C / C | SV4/Z32TO/P | 1 | 0.03 % | | 1 | 0.02 % | | 46 | C D D D C | T305Q | 1 | 0.03 % | | 1 | 0.02 % | | 47 | C D / C C D C | V4/KE1B | 1 | 0.03 % | | 1 | 0.02 % | | 48 | C C D D D D | VX3150 | 1 | 0.03 % | | 2 | 0.03 % | |
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