| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | SP1AEN | 100 | 66.23 % | | 153 | 60.00 % | | | 2 | C C D C | SN2K | 26 | 17.22 % | | 61 | 23.92 % | | | 3 | C C D C C | SO3RM | 17 | 11.26 % | | 22 | 8.63 % | | | 4 | C C D C C C / D | SO1EKO/9 | 3 | 1.99 % | | 7 | 2.75 % | | | 5 | D C D C | 3Z1K | 2 | 1.32 % | | 5 | 1.96 % | | | 6 | C C D D D C C | SN150SZ | 1 | 0.66 % | | 1 | 0.39 % | | | 7 | C C / C C D C C | SP/DD3JA | 1 | 0.66 % | | 1 | 0.39 % | | | 8 | D C D D C C C | 3Z50AYP | 1 | 0.66 % | | 5 | 1.96 % | |
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