| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | RA4UDC | 13 | 32.50 % | | 20 | 37.74 % | | | 2 | C C D C C | RA3GZ | 13 | 32.50 % | | 15 | 28.30 % | | | 3 | C D C C | R4CU | 7 | 17.50 % | | 10 | 18.87 % | | | 4 | C D C C C | R4AAR | 3 | 7.50 % | | 3 | 5.66 % | | | 5 | C C D C | RT4W | 3 | 7.50 % | | 4 | 7.55 % | | | 6 | C C D / C C D C C C | EA8/HB9FIH | 1 | 2.50 % | | 1 | 1.89 % | |
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