| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | BG8GAM | 1308 | 45.26 % | | 2030 | 44.97 % | | 2 | C C D C C | AA1AC | 850 | 29.41 % | | 1368 | 30.31 % | | 3 | C D C C C | F1ADG | 341 | 11.80 % | | 505 | 11.19 % | | 4 | C C D C | AE4Y | 123 | 4.26 % | | 186 | 4.12 % | | 5 | C D C C | C4TA | 122 | 4.22 % | | 175 | 3.88 % | | 6 | D C D C C | 4L1MA | 39 | 1.35 % | | 96 | 2.13 % | | 7 | C D D C | E70A | 19 | 0.66 % | | 25 | 0.55 % | | 8 | C D D C C | A41ZZ | 19 | 0.66 % | | 31 | 0.69 % | | 9 | D C D C C C | 2E0FHM | 17 | 0.59 % | | 40 | 0.89 % | | 10 | C C D C C C / C C C | DL1SER/QRP | 13 | 0.45 % | | 14 | 0.31 % | | 11 | C D C C C / C C C | F5TIL/QRP | 7 | 0.24 % | | 8 | 0.18 % | | 12 | D C D C | 4L8A | 5 | 0.17 % | | 5 | 0.11 % | | 13 | C D D C C C | E73ESP | 4 | 0.14 % | | 4 | 0.09 % | | 14 | C C D C C / C C C | DK7IF/QRP | 3 | 0.10 % | | 3 | 0.07 % | | 15 | C C D C C C / C | DL1HWS/M | 2 | 0.07 % | | 3 | 0.07 % | | 16 | C C D C C / C | AK4JA/M | 2 | 0.07 % | | 2 | 0.04 % | | 17 | C C / C C D C C | DL/HA8PG | 2 | 0.07 % | | 2 | 0.04 % | | 18 | C C D C C C C | II9RCAL | 2 | 0.07 % | | 2 | 0.04 % | | 19 | C C D / C C D C C C | EA5/LA4WKA | 1 | 0.03 % | | 1 | 0.02 % | | 20 | C C C C C | DDIUS | 1 | 0.03 % | | 1 | 0.02 % | | 21 | C D C C C C | F6AWEI | 1 | 0.03 % | | 1 | 0.02 % | | 22 | C C D D C C C C | HS19IARU | 1 | 0.03 % | | 1 | 0.02 % | | 23 | D C D / C C D C C | 3B8/YU6DX | 1 | 0.03 % | | 1 | 0.02 % | | 24 | C C D C C / D | LZ3WY/2 | 1 | 0.03 % | | 1 | 0.02 % | | 25 | C D C C C / C | N3ATQ/M | 1 | 0.03 % | | 2 | 0.04 % | | 26 | C D C C / D | R0RG/9 | 1 | 0.03 % | | 1 | 0.02 % | | 27 | C D C | S9Z | 1 | 0.03 % | | 1 | 0.02 % | | 28 | C C D C C C / D | UB1AST/6 | 1 | 0.03 % | | 3 | 0.07 % | | 29 | C C D / C C D C C | VE2/UR7QC | 1 | 0.03 % | | 1 | 0.02 % | | 30 | C C / C C D C C C | YO/IK5MEP | 1 | 0.03 % | | 1 | 0.02 % | |
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