| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | AB9TE | 2 | 22.22 % | | 2 | 20.00 % | | | 2 | C C D C C C | KC0RVS | 2 | 22.22 % | | 3 | 30.00 % | | | 3 | C D C C | W4GX | 2 | 22.22 % | | 2 | 20.00 % | | | 4 | C D C | K0T | 1 | 11.11 % | | 1 | 10.00 % | | | 5 | C D C C C | W0ZWY | 1 | 11.11 % | | 1 | 10.00 % | | | 6 | C C D C | WX3B | 1 | 11.11 % | | 1 | 10.00 % | |
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