| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1ON | 836 | 33.72 % | | 1526 | 35.61 % | | 2 | C C D C C C | CS7AMH | 599 | 24.16 % | | 874 | 20.40 % | | 3 | C C D C | AA1V | 333 | 13.43 % | | 624 | 14.56 % | | 4 | C D C C | B7HQ | 324 | 13.07 % | | 485 | 11.32 % | | 5 | C D C C C | F1IWH | 151 | 6.09 % | | 231 | 5.39 % | | 6 | C D D C | E70A | 90 | 3.63 % | | 282 | 6.58 % | | 7 | C D D C C | A71AM | 27 | 1.09 % | | 46 | 1.07 % | | 8 | D C D C C | 4M5EN | 26 | 1.05 % | | 48 | 1.12 % | | 9 | C D C | G3P | 15 | 0.61 % | | 39 | 0.91 % | | 10 | D C D C | 3Z0X | 12 | 0.48 % | | 21 | 0.49 % | | 11 | C C D C C / C | DJ4MM/P | 6 | 0.24 % | | 8 | 0.19 % | | 12 | C C / C C D C C C | DL/HB9DQL | 5 | 0.20 % | | 8 | 0.19 % | | 13 | C C D C C C / C | DK1TBL/P | 5 | 0.20 % | | 5 | 0.12 % | | 14 | C C / C C D C | DL/HG0R | 4 | 0.16 % | | 10 | 0.23 % | | 15 | D C D C C C | 2W0WOD | 4 | 0.16 % | | 4 | 0.09 % | | 16 | C C / C D C C | DL/K9NW | 4 | 0.16 % | | 12 | 0.28 % | | 17 | C C D D D C C C | OE100RAD | 3 | 0.12 % | | 5 | 0.12 % | | 18 | C D C C / D | R8MB/1 | 3 | 0.12 % | | 4 | 0.09 % | | 19 | C C D C C / D | NU1AW/9 | 3 | 0.12 % | | 6 | 0.14 % | | 20 | C C D C C C / C C | DG7LAN/MM | 2 | 0.08 % | | 2 | 0.05 % | | 21 | C C / C D C C C | DL/I4VEQ | 2 | 0.08 % | | 2 | 0.05 % | | 22 | C C D D C | OG55W | 2 | 0.08 % | | 9 | 0.21 % | | 23 | C C / C C D C C | DL/OZ1AA | 2 | 0.08 % | | 8 | 0.19 % | | 24 | C D C C C / C | F4GKR/P | 2 | 0.08 % | | 3 | 0.07 % | | 25 | C C D C C / C C | RA0LQ/MM | 2 | 0.08 % | | 3 | 0.07 % | | 26 | C / C D C C C | F/G0PZA | 1 | 0.04 % | | 1 | 0.02 % | | 27 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 1 | 0.02 % | | 28 | D C D D D C | 3Z100K | 1 | 0.04 % | | 1 | 0.02 % | | 29 | C D D C C C | E76BXQ | 1 | 0.04 % | | 1 | 0.02 % | | 30 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.05 % | | 31 | C C D D C C | LM90HQ | 1 | 0.04 % | | 1 | 0.02 % | | 32 | C C D C C C C | DA0WRTC | 1 | 0.04 % | | 1 | 0.02 % | | 33 | C C D C C C / C C C | EA7AAW/QRP | 1 | 0.04 % | | 1 | 0.02 % | | 34 | C C D D C C C | OH73ELK | 1 | 0.04 % | | 1 | 0.02 % | | 35 | C / C C D C C | F/PD1RP | 1 | 0.04 % | | 2 | 0.05 % | | 36 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 1 | 0.02 % | | 37 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 2 | 0.05 % | | 38 | C C D C / D | SB5N/7 | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C C D C / C | SE5Z/P | 1 | 0.04 % | | 1 | 0.02 % | | 40 | C C D / C C D C C | SV2/RW3AL | 1 | 0.04 % | | 1 | 0.02 % | | 41 | C C D / C C D C C C | SV8/HB9FIH | 1 | 0.04 % | | 1 | 0.02 % | | 42 | C C D C C / C C C | YU1LM/QRP | 1 | 0.04 % | | 1 | 0.02 % | |
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