| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K0AJW | 366 | 34.17 % | | 454 | 33.33 % | | | 2 | C D C C | K0BT | 314 | 29.32 % | | 441 | 32.38 % | | | 3 | C C D C C C | CG7NOR | 131 | 12.23 % | | 142 | 10.43 % | | | 4 | C C D C C | AA2BJ | 128 | 11.95 % | | 158 | 11.60 % | | | 5 | C C D C | AA3B | 83 | 7.75 % | | 106 | 7.78 % | | | 6 | C D C | K0N | 44 | 4.11 % | | 56 | 4.11 % | | | 7 | C C / C C D C | HI/SP5Y | 1 | 0.09 % | | 1 | 0.07 % | | | 8 | C D C C C / C | K5YAA/M | 1 | 0.09 % | | 1 | 0.07 % | | | 9 | C D D C C | K60AU | 1 | 0.09 % | | 1 | 0.07 % | | | 10 | C C D C D C | VC3C2C | 1 | 0.09 % | | 1 | 0.07 % | | | 11 | C D / C C D C C C | W5/MM0LID | 1 | 0.09 % | | 1 | 0.07 % | |
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