| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K4EME | 21 | 32.81 % | | 21 | 29.58 % | | | 2 | C D C C | K4PJ | 14 | 21.88 % | | 15 | 21.13 % | | | 3 | C C D C C | AB5UE | 14 | 21.88 % | | 14 | 19.72 % | | | 4 | C C D C C C | KC3DGM | 7 | 10.94 % | | 7 | 9.86 % | | | 5 | C C D C | AB1J | 6 | 9.38 % | | 7 | 9.86 % | | | 6 | C D C | W3A | 1 | 1.56 % | | 1 | 1.41 % | | | 7 | C D C C C C C | W4CRVTN | 1 | 1.56 % | | 1 | 1.41 % | |
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