| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | CR5O | 25 | 50.00 % | | 25 | 50.00 % | | | 2 | C C D C C | DJ2BC | 9 | 18.00 % | | 9 | 18.00 % | | | 3 | C C D C C C | CT1DRB | 5 | 10.00 % | | 5 | 10.00 % | | | 4 | C D D C | S51Z | 3 | 6.00 % | | 3 | 6.00 % | | | 5 | C D C C | E7DX | 2 | 4.00 % | | 2 | 4.00 % | | | 6 | D C D C | 4O4T | 2 | 4.00 % | | 2 | 4.00 % | | | 7 | D C D C C | 9A3YT | 1 | 2.00 % | | 1 | 2.00 % | | | 8 | C C / C C D C C | OE/HB9RB | 1 | 2.00 % | | 1 | 2.00 % | | | 9 | C D C C C | G3TXF | 1 | 2.00 % | | 1 | 2.00 % | | | 10 | C D D C C | S53MM | 1 | 2.00 % | | 1 | 2.00 % | |
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