| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0AD | 142 | 31.56 % | | 147 | 30.06 % | | | 2 | C D C C C | K0ANT | 137 | 30.44 % | | 143 | 29.24 % | | | 3 | C C D C C C | KA2MGE | 53 | 11.78 % | | 53 | 10.84 % | | | 4 | C C D C | AA3B | 50 | 11.11 % | | 53 | 10.84 % | | | 5 | C C D C C | AA2BJ | 44 | 9.78 % | | 44 | 9.00 % | | | 6 | C D C | K1P | 22 | 4.89 % | | 22 | 4.50 % | | | 7 | C D C C / C D | K2NV/V3 | 1 | 0.22 % | | 1 | 0.20 % | | | 8 | C D C C C / D | K2YNT/2 | 1 | 0.22 % | | 1 | 0.20 % | |
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