| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | EA3IND | 573 | 39.17 % | | 610 | 35.80 % | | | 2 | C D C C C | K0FTR | 444 | 30.35 % | | 468 | 27.46 % | | | 3 | C C D C C | AA0AM | 188 | 12.85 % | | 202 | 11.85 % | | | 4 | C D C C | K0RC | 119 | 8.13 % | | 137 | 8.04 % | | | 5 | C C D C | AA3R | 112 | 7.66 % | | 128 | 7.51 % | | | 6 | C D C C C / C | K5ZZR/M | 6 | 0.41 % | | 6 | 0.35 % | | | 7 | C D C | K1E | 4 | 0.27 % | | 4 | 0.23 % | | | 8 | C C D C C C / C | KD9YHP/M | 4 | 0.27 % | | 4 | 0.23 % | | | 9 | C C D C C / C | KI5MM/M | 3 | 0.21 % | | 3 | 0.18 % | | | 10 | C C D C / C | KR4S/M | 3 | 0.21 % | | 3 | 0.18 % | | | 11 | C D C C / C | K2AA/R | 3 | 0.21 % | | 4 | 0.23 % | | | 12 | C D D C C C | C93JRH | 2 | 0.14 % | | 2 | 0.12 % | | | 13 | D C D C C C | 2E0JRS | 1 | 0.07 % | | 1 | 0.06 % | | | 14 | D C D C C | 8P6NW | 1 | 0.07 % | | 1 | 0.06 % | |
|