| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0BJ | 74 | 29.37 % | | 96 | 29.81 % | | | 2 | C C D C | AC2C | 51 | 20.24 % | | 68 | 21.12 % | | | 3 | C C D C C | AB5EB | 49 | 19.44 % | | 66 | 20.50 % | | | 4 | C C D C C C | HS0ZIA | 31 | 12.30 % | | 37 | 11.49 % | | | 5 | C D C C C | K0HUU | 31 | 12.30 % | | 35 | 10.87 % | | | 6 | D C D C C | 3V8BB | 5 | 1.98 % | | 6 | 1.86 % | | | 7 | D C D C | 4J5A | 2 | 0.79 % | | 4 | 1.24 % | | | 8 | C D D C C | A71CM | 2 | 0.79 % | | 2 | 0.62 % | | | 9 | D C D C C C | 8J1MTD | 2 | 0.79 % | | 3 | 0.93 % | | | 10 | C D D C | A71A | 2 | 0.79 % | | 2 | 0.62 % | | | 11 | C C D C C / D | BD4HF/5 | 1 | 0.40 % | | 1 | 0.31 % | | | 12 | C C D / C C D C C | CP6/DF9GR | 1 | 0.40 % | | 1 | 0.31 % | | | 13 | C D C | P3F | 1 | 0.40 % | | 1 | 0.31 % | |
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