| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | F4HZZ | 47 | 41.59 % | | 49 | 42.61 % | | | 2 | C D C C | K1AA | 24 | 21.24 % | | 24 | 20.87 % | | | 3 | C C D C C C | KA3YGL | 18 | 15.93 % | | 18 | 15.65 % | | | 4 | C C D C C | AB8AC | 12 | 10.62 % | | 12 | 10.43 % | | | 5 | C C D C | AB3I | 10 | 8.85 % | | 10 | 8.70 % | | | 6 | C D C | K4D | 1 | 0.88 % | | 1 | 0.87 % | | | 7 | C C D D C C | VE30RF | 1 | 0.88 % | | 1 | 0.87 % | |
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