| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0AD | 127 | 56.70 % | | 197 | 56.77 % | | | 2 | C C D C | AD3Z | 35 | 15.63 % | | 64 | 18.44 % | | | 3 | C D C C C | K0LUZ | 33 | 14.73 % | | 47 | 13.54 % | | | 4 | C C D C C | AB1OD | 21 | 9.38 % | | 29 | 8.36 % | | | 5 | C C D C C C | KB3UHN | 7 | 3.13 % | | 9 | 2.59 % | | | 6 | C D C | K2Z | 1 | 0.45 % | | 1 | 0.29 % | |
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