| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0EA | 111 | 55.78 % | | 139 | 57.92 % | | | 2 | C C D C | AA1K | 34 | 17.09 % | | 39 | 16.25 % | | | 3 | C C D C C | AB3CX | 27 | 13.57 % | | 32 | 13.33 % | | | 4 | C D C C C | K0VBU | 20 | 10.05 % | | 23 | 9.58 % | | | 5 | C C D C C C | KA8JBK | 7 | 3.52 % | | 7 | 2.92 % | |
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