| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K0LTL | 39 | 39.00 % | | 39 | 38.61 % | | | 2 | C C D C C C | KB6QPI | 32 | 32.00 % | | 32 | 31.68 % | | | 3 | C C D C C | AA3GA | 10 | 10.00 % | | 10 | 9.90 % | | | 4 | C C D C | AD8D | 9 | 9.00 % | | 9 | 8.91 % | | | 5 | C D C C | K2WJ | 9 | 9.00 % | | 9 | 8.91 % | | | 6 | C D C | K5K | 1 | 1.00 % | | 1 | 0.99 % | |
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