| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C | AA7A | 298 | 37.96 % | | 470 | 41.45 % | | | 2 | C C D C C | AA1ON | 172 | 21.91 % | | 217 | 19.14 % | | | 3 | C C D C C C | CT1GFK | 114 | 14.52 % | | 133 | 11.73 % | | | 4 | C D C C | E7AA | 111 | 14.14 % | | 189 | 16.67 % | | | 5 | C D C C C | F5MUX | 24 | 3.06 % | | 33 | 2.91 % | | | 6 | C D D C | C37N | 23 | 2.93 % | | 31 | 2.73 % | | | 7 | D C D C | 3B8M | 14 | 1.78 % | | 23 | 2.03 % | | | 8 | D C D C C | 3B9KW | 7 | 0.89 % | | 9 | 0.79 % | | | 9 | C D D C C | S52GO | 7 | 0.89 % | | 8 | 0.71 % | | | 10 | C D C | C4W | 5 | 0.64 % | | 9 | 0.79 % | | | 11 | D C D C C C | 9A1AAY | 2 | 0.25 % | | 2 | 0.18 % | | | 12 | C C / C C D C C | FG/OK6RA | 2 | 0.25 % | | 2 | 0.18 % | | | 13 | D C / C D D C C | 9A/S56NE | 1 | 0.13 % | | 1 | 0.09 % | | | 14 | C C D / C C D C C | HB0/HB9RB | 1 | 0.13 % | | 1 | 0.09 % | | | 15 | C C D D C C C C C | HG23TISZA | 1 | 0.13 % | | 2 | 0.18 % | | | 16 | D C / C D C C C | 9A/W0AAE | 1 | 0.13 % | | 1 | 0.09 % | | | 17 | C C / C C D C | TF/OU2I | 1 | 0.13 % | | 2 | 0.18 % | | | 18 | C C D C / D | WB9Z/4 | 1 | 0.13 % | | 1 | 0.09 % | |
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