| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA1QD | 861 | 32.79 % | | 1519 | 33.57 % | | 2 | C C D C C C | CS7AMH | 621 | 23.65 % | | 908 | 20.07 % | | 3 | C C D C | AA1K | 352 | 13.40 % | | 665 | 14.70 % | | 4 | C D C C | D1HQ | 328 | 12.49 % | | 503 | 11.12 % | | 5 | C D C C C | F1IWH | 181 | 6.89 % | | 258 | 5.70 % | | 6 | C D D C | E72U | 95 | 3.62 % | | 335 | 7.40 % | | 7 | C D D C C | A47RS | 35 | 1.33 % | | 62 | 1.37 % | | 8 | D C D C C | 3V8CB | 27 | 1.03 % | | 63 | 1.39 % | | 9 | C D C | C4W | 17 | 0.65 % | | 40 | 0.88 % | | 10 | D C D C | 3Z0X | 16 | 0.61 % | | 27 | 0.60 % | | 11 | D C D C C C | 2E0MNG | 9 | 0.34 % | | 11 | 0.24 % | | 12 | C C D C C / C | DF3YG/P | 8 | 0.30 % | | 11 | 0.24 % | | 13 | C D C C C / C | F4GKR/P | 7 | 0.27 % | | 8 | 0.18 % | | 14 | C C D C C C / C | DL2KUH/P | 6 | 0.23 % | | 8 | 0.18 % | | 15 | C C / C C D C C | DL/EA7KW | 5 | 0.19 % | | 11 | 0.24 % | | 16 | C C / C C D C | DL/HG0R | 4 | 0.15 % | | 9 | 0.20 % | | 17 | C C / C D C C | DL/K9NW | 4 | 0.15 % | | 10 | 0.22 % | | 18 | C C / C C D C C C | DL/HB9DQL | 4 | 0.15 % | | 10 | 0.22 % | | 19 | C C / C D C C C | DL/G4IRN | 4 | 0.15 % | | 5 | 0.11 % | | 20 | C C D D D C C C | OE100RAD | 4 | 0.15 % | | 5 | 0.11 % | | 21 | C C D / C C D C C | CS7/DO3HK | 3 | 0.11 % | | 3 | 0.07 % | | 22 | C C D D D C | HF100I | 2 | 0.08 % | | 2 | 0.04 % | | 23 | C C D C C C C | DA0WRTC | 2 | 0.08 % | | 2 | 0.04 % | | 24 | C / C C D C C | F/DF5RF | 2 | 0.08 % | | 4 | 0.09 % | | 25 | C C D D C C | LM90HQ | 2 | 0.08 % | | 3 | 0.07 % | | 26 | C C D C C / C C | RA0LQ/MM | 2 | 0.08 % | | 2 | 0.04 % | | 27 | C C D C / D | RT9T/3 | 2 | 0.08 % | | 2 | 0.04 % | | 28 | C D D C C C | S56WYB | 2 | 0.08 % | | 3 | 0.07 % | | 29 | C C D D C | OG55W | 2 | 0.08 % | | 9 | 0.20 % | | 30 | D C / C C D C | 4L/RC5A | 1 | 0.04 % | | 1 | 0.02 % | | 31 | C C D D D C C | DL100BY | 1 | 0.04 % | | 1 | 0.02 % | | 32 | D C D C C / C | 9A6DR/P | 1 | 0.04 % | | 1 | 0.02 % | | 33 | C C D D C C C C | LM90NRRL | 1 | 0.04 % | | 2 | 0.04 % | | 34 | D C D D D C | 3Z100K | 1 | 0.04 % | | 2 | 0.04 % | | 35 | C C D C C / D | NU1AW/9 | 1 | 0.04 % | | 2 | 0.04 % | | 36 | C C D C / C C D | NP4G/KP2 | 1 | 0.04 % | | 1 | 0.02 % | | 37 | C C D C C C / C C C | EA7AAW/QRP | 1 | 0.04 % | | 1 | 0.02 % | | 38 | C C D C / C | OL5E/P | 1 | 0.04 % | | 1 | 0.02 % | | 39 | C C D D C C C | DB25ONN | 1 | 0.04 % | | 1 | 0.02 % | | 40 | D C / C D D C C | 9A/S57KM | 1 | 0.04 % | | 2 | 0.04 % | | 41 | C D D C C / C C | S51TA/MM | 1 | 0.04 % | | 2 | 0.04 % | | 42 | C D C C C / D | K9QVB/9 | 1 | 0.04 % | | 1 | 0.02 % | | 43 | C D / C C D C C C / C | S7/OH3KAV/M | 1 | 0.04 % | | 1 | 0.02 % | | 44 | C C D C C C / C C | SP5LJP/MM | 1 | 0.04 % | | 1 | 0.02 % | | 45 | C C D / C D D C C | SV9/S55OO | 1 | 0.04 % | | 1 | 0.02 % | | 46 | C D C C / D | W1AW/4 | 1 | 0.04 % | | 2 | 0.04 % | | 47 | C C D C C / C C C | YU1LM/QRP | 1 | 0.04 % | | 2 | 0.04 % | | 48 | C D D C / C C C | Z35M/QRP | 1 | 0.04 % | | 2 | 0.04 % | |
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