| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | AC5YFJ | 1563 | 29.50 % | | 2132 | 25.51 % | | 2 | C D C C C | F1ADG | 1083 | 20.44 % | | 1678 | 20.08 % | | 3 | C C D C C | AA0AJ | 1004 | 18.95 % | | 1531 | 18.32 % | | 4 | C C D C | AA0Y | 900 | 16.99 % | | 1700 | 20.34 % | | 5 | C D C C | E7DX | 538 | 10.15 % | | 1013 | 12.12 % | | 6 | C D D C C | A61QQ | 31 | 0.59 % | | 40 | 0.48 % | | 7 | C D D C | A44A | 29 | 0.55 % | | 46 | 0.55 % | | 8 | C D C | C4W | 24 | 0.45 % | | 39 | 0.47 % | | 9 | D C D C | 1A3B | 23 | 0.43 % | | 43 | 0.51 % | | 10 | D C D C C | 3V8SS | 23 | 0.43 % | | 29 | 0.35 % | | 11 | C C D D C | CR55K | 8 | 0.15 % | | 14 | 0.17 % | | 12 | D C D C C C | 2E0EVM | 7 | 0.13 % | | 7 | 0.08 % | | 13 | C D C C C / C | F6GNP/M | 6 | 0.11 % | | 6 | 0.07 % | | 14 | C C D C C C / C | DL6FBL/P | 6 | 0.11 % | | 6 | 0.07 % | | 15 | C C D D C C C | DK65ERD | 4 | 0.08 % | | 6 | 0.07 % | | 16 | C C D C C C / C C C | HI8ESF/QRP | 4 | 0.08 % | | 4 | 0.05 % | | 17 | C D D C C C | E73ENS | 4 | 0.08 % | | 4 | 0.05 % | | 18 | C C D C C C / D | KB6QPI/4 | 4 | 0.08 % | | 5 | 0.06 % | | 19 | C D C C C / D | K9LOF/5 | 3 | 0.06 % | | 4 | 0.05 % | | 20 | D C D D C | 9A23Y | 2 | 0.04 % | | 6 | 0.07 % | | 21 | C C / C C D C C | DL/UT1AN | 2 | 0.04 % | | 4 | 0.05 % | | 22 | C C D C C C / C D | KL7HQR/W6 | 2 | 0.04 % | | 4 | 0.05 % | | 23 | C D C C / C | N3JO/M | 2 | 0.04 % | | 2 | 0.02 % | | 24 | C C D C / C D | AL5P/W5 | 2 | 0.04 % | | 4 | 0.05 % | | 25 | C C D / C C D C C | HK4/KC1XX | 2 | 0.04 % | | 2 | 0.02 % | | 26 | C D C C C / C C | K1PET/AG | 1 | 0.02 % | | 1 | 0.01 % | | 27 | C C D D C C | HB20BE | 1 | 0.02 % | | 1 | 0.01 % | | 28 | C C D C C C C | DL5ODAH | 1 | 0.02 % | | 1 | 0.01 % | | 29 | C D C C C D D | K7LSX19 | 1 | 0.02 % | | 1 | 0.01 % | | 30 | C C D D C C C C | DA23WARD | 1 | 0.02 % | | 1 | 0.01 % | | 31 | C C D C C / D | AB5ZA/7 | 1 | 0.02 % | | 1 | 0.01 % | | 32 | C C D / C D C C C | KP4/W0JKT | 1 | 0.02 % | | 1 | 0.01 % | | 33 | C C D D D C | LN100K | 1 | 0.02 % | | 1 | 0.01 % | | 34 | C D C C D D D D D C | N2MT14284G | 1 | 0.02 % | | 1 | 0.01 % | | 35 | C C D C / C C D | KL2A/NZ7 | 1 | 0.02 % | | 2 | 0.02 % | | 36 | C D C C / C C C | N8XA/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 37 | C C D C / D | NE8O/4 | 1 | 0.02 % | | 2 | 0.02 % | | 38 | C C D C C / C C D | NH6HE/NQ7 | 1 | 0.02 % | | 1 | 0.01 % | | 39 | C D D D C C C C | S509WRTC | 1 | 0.02 % | | 1 | 0.01 % | | 40 | C C D D D C C | TC100TC | 1 | 0.02 % | | 2 | 0.02 % | | 41 | C C D D | TM65 | 1 | 0.02 % | | 1 | 0.01 % | | 42 | C C / C C D C | VK/EA2W | 1 | 0.02 % | | 1 | 0.01 % | | 43 | C D C C / D | W1AW/5 | 1 | 0.02 % | | 3 | 0.04 % | | 44 | C D / C C D C C | W4/KL5IS | 1 | 0.02 % | | 1 | 0.01 % | | 45 | C D / C D C C | W4/L5IS | 1 | 0.02 % | | 1 | 0.01 % | | 46 | C C D C C / C C C | WA4CQ/QRP | 1 | 0.02 % | | 1 | 0.01 % | | 47 | C C / C D D C C | ZA/Z61DX | 1 | 0.02 % | | 1 | 0.01 % | |
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