| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | KD2RPX | 5 | 35.71 % | | 5 | 35.71 % | | | 2 | C D C C C | K3MEF | 4 | 28.57 % | | 4 | 28.57 % | | | 3 | C C D C C | AI7AZ | 3 | 21.43 % | | 3 | 21.43 % | | | 4 | C C D C | NQ9N | 1 | 7.14 % | | 1 | 7.14 % | | | 5 | C D C | W6S | 1 | 7.14 % | | 1 | 7.14 % | |
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