| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K3DNP | 8 | 50.00 % | | 8 | 38.10 % | | | 2 | C C D C C | AA0AW | 4 | 25.00 % | | 4 | 19.05 % | | | 3 | C D C C | K5EC | 1 | 6.25 % | | 1 | 4.76 % | | | 4 | C C D C C C | KF5VDX | 1 | 6.25 % | | 1 | 4.76 % | | | 5 | C C D C | NX5M | 1 | 6.25 % | | 1 | 4.76 % | | | 6 | C D C | W5T | 1 | 6.25 % | | 1 | 4.76 % | |
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