| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | BD3OM | 40 | 31.75 % | | 41 | 30.37 % | | | 2 | C C D C C C | CR7AJL | 34 | 26.98 % | | 37 | 27.41 % | | | 3 | C C D C | HG7T | 16 | 12.70 % | | 18 | 13.33 % | | | 4 | C D C C | F5IN | 8 | 6.35 % | | 9 | 6.67 % | | | 5 | C D C C C | F5NBX | 7 | 5.56 % | | 7 | 5.19 % | | | 6 | D C D C C | 4J6RO | 4 | 3.17 % | | 4 | 2.96 % | | | 7 | C D D C | E74X | 3 | 2.38 % | | 4 | 2.96 % | | | 8 | D C D C | 4L8A | 3 | 2.38 % | | 3 | 2.22 % | | | 9 | C C D D D C C C | AT150ITU | 2 | 1.59 % | | 2 | 1.48 % | | | 10 | C D D C C | A65CA | 2 | 1.59 % | | 2 | 1.48 % | | | 11 | C C D D C C C C | PA90IARU | 2 | 1.59 % | | 2 | 1.48 % | | | 12 | D C / C C D C C | 5B/RN3QO | 1 | 0.79 % | | 2 | 1.48 % | | | 13 | C C D C C C / D | IZ8JFL/1 | 1 | 0.79 % | | 1 | 0.74 % | | | 14 | C C D C C / C C C C | KP4FD/IARU | 1 | 0.79 % | | 1 | 0.74 % | | | 15 | C C D D D C C | AM890OM | 1 | 0.79 % | | 1 | 0.74 % | | | 16 | C C D D C C C | PS70FEB | 1 | 0.79 % | | 1 | 0.74 % | |
|