| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | AC4RC | 8 | 26.67 % | | 8 | 26.67 % | | | 2 | C D C C C | K0PEA | 8 | 26.67 % | | 8 | 26.67 % | | | 3 | C C D C C C | KA2OUO | 7 | 23.33 % | | 7 | 23.33 % | | | 4 | C D C | K9E | 3 | 10.00 % | | 3 | 10.00 % | | | 5 | C D C C | K0VM | 3 | 10.00 % | | 3 | 10.00 % | | | 6 | C C D C | KE3Q | 1 | 3.33 % | | 1 | 3.33 % | |
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