| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K1EME | 63 | 45.65 % | | 63 | 45.65 % | | | 2 | C D C C | K0ND | 27 | 19.57 % | | 27 | 19.57 % | | | 3 | C C D C C C | KB0BRY | 22 | 15.94 % | | 22 | 15.94 % | | | 4 | C C D C C | AB4CZ | 13 | 9.42 % | | 13 | 9.42 % | | | 5 | C C D C | AF1R | 8 | 5.80 % | | 8 | 5.80 % | | | 6 | C D C | K2J | 3 | 2.17 % | | 3 | 2.17 % | | | 7 | C C D D C C | KM40VT | 1 | 0.72 % | | 1 | 0.72 % | | | 8 | C D D C C | W82PF | 1 | 0.72 % | | 1 | 0.72 % | |
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