| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K2YG | 6 | 37.50 % | | 6 | 37.50 % | | | 2 | C D C C C | K4VRC | 4 | 25.00 % | | 4 | 25.00 % | | | 3 | C C D C C | AC8RC | 3 | 18.75 % | | 3 | 18.75 % | | | 4 | C C D C | KV4T | 1 | 6.25 % | | 1 | 6.25 % | | | 5 | C D C | W4T | 1 | 6.25 % | | 1 | 6.25 % | | | 6 | C C D C C C | WD9HSY | 1 | 6.25 % | | 1 | 6.25 % | |
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