| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0XF | 47 | 38.84 % | | 49 | 38.89 % | | | 2 | C D C C C | K0ANT | 36 | 29.75 % | | 36 | 28.57 % | | | 3 | C C D C | AC7A | 16 | 13.22 % | | 16 | 12.70 % | | | 4 | C C D C C | AA6CV | 10 | 8.26 % | | 11 | 8.73 % | | | 5 | C C D C C C | KC1BDJ | 8 | 6.61 % | | 8 | 6.35 % | | | 6 | C D C | N2U | 2 | 1.65 % | | 2 | 1.59 % | | | 7 | C D C C C / D | K2YNT/2 | 1 | 0.83 % | | 1 | 0.79 % | | | 8 | C D C C / C D | K2NV/V3 | 1 | 0.83 % | | 1 | 0.79 % | |
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