| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AA9A | 197 | 40.37 % | | 267 | 43.77 % | | | 2 | C C D C C | AB3CX | 119 | 24.39 % | | 136 | 22.30 % | | | 3 | C C D C C C | DJ0MDR | 66 | 13.52 % | | 71 | 11.64 % | | | 4 | C D C C | F5IN | 42 | 8.61 % | | 50 | 8.20 % | | | 5 | C D D C | E70T | 15 | 3.07 % | | 18 | 2.95 % | | | 6 | C D C C C | F5NTV | 11 | 2.25 % | | 14 | 2.30 % | | | 7 | C D D C C | S51DX | 10 | 2.05 % | | 11 | 1.80 % | | | 8 | D C D C | 3Z1K | 8 | 1.64 % | | 13 | 2.13 % | | | 9 | D C D C C | 3V8SS | 6 | 1.23 % | | 9 | 1.48 % | | | 10 | C D C | C4W | 5 | 1.02 % | | 9 | 1.48 % | | | 11 | C C D / C C D C C | CT9/OM3BH | 2 | 0.41 % | | 2 | 0.33 % | | | 12 | C C D / D C D C C | CT9/9A3XV | 1 | 0.20 % | | 1 | 0.16 % | | | 13 | D C D C C C | 4U1GSC | 1 | 0.20 % | | 1 | 0.16 % | | | 14 | C C D C C C C | DA0WRTC | 1 | 0.20 % | | 3 | 0.49 % | | | 15 | C C / C C D C C C | PA/PY2SEX | 1 | 0.20 % | | 1 | 0.16 % | | | 16 | C C D / C C D C C C | EA9/EA5HPX | 1 | 0.20 % | | 1 | 0.16 % | | | 17 | C D D C C C | S59ABC | 1 | 0.20 % | | 1 | 0.16 % | | | 18 | C D D D C | Z370M | 1 | 0.20 % | | 2 | 0.33 % | |
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