| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | DD5M | 158 | 36.49 % | | 220 | 38.33 % | | | 2 | C C D C C | CN2AA | 131 | 30.25 % | | 170 | 29.62 % | | | 3 | C C D C C C | BI4SCC | 63 | 14.55 % | | 72 | 12.54 % | | | 4 | C D C C | G6MC | 42 | 9.70 % | | 54 | 9.41 % | | | 5 | C D C C C | F5MZE | 8 | 1.85 % | | 8 | 1.39 % | | | 6 | D C D C | 4O3A | 6 | 1.39 % | | 14 | 2.44 % | | | 7 | C D D C | P33W | 5 | 1.15 % | | 9 | 1.57 % | | | 8 | C D C | G4R | 4 | 0.92 % | | 5 | 0.87 % | | | 9 | C D D C C | E77AW | 3 | 0.69 % | | 5 | 0.87 % | | | 10 | D C D C C | 3V8SS | 3 | 0.69 % | | 4 | 0.70 % | | | 11 | C C D D C C C | HF50KDA | 2 | 0.46 % | | 4 | 0.70 % | | | 12 | C C D C C C / D | IK3UNA/1 | 2 | 0.46 % | | 2 | 0.35 % | | | 13 | C C D C C C C | DK0WRTC | 1 | 0.23 % | | 2 | 0.35 % | | | 14 | C D D C C C C C | J42PIKRA | 1 | 0.23 % | | 1 | 0.17 % | | | 15 | C D D C C C | E73ESP | 1 | 0.23 % | | 1 | 0.17 % | | | 16 | C D C C / D | R9XC/1 | 1 | 0.23 % | | 1 | 0.17 % | | | 17 | C C D C C / C C C | RU3TJ/QRP | 1 | 0.23 % | | 1 | 0.17 % | | | 18 | C D D D C C C | S570ABC | 1 | 0.23 % | | 1 | 0.17 % | |
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