| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C C | CT7AUT | 42 | 47.73 % | | 42 | 47.73 % | | | 2 | C C D C C | CN2DX | 20 | 22.73 % | | 20 | 22.73 % | | | 3 | C D C C C | F1PBZ | 9 | 10.23 % | | 9 | 10.23 % | | | 4 | C C D C | DD5Y | 7 | 7.95 % | | 7 | 7.95 % | | | 5 | C D D C | E70A | 3 | 3.41 % | | 3 | 3.41 % | | | 6 | D C D C C | 9A5TW | 2 | 2.27 % | | 2 | 2.27 % | | | 7 | D C D C | 9A4A | 2 | 2.27 % | | 2 | 2.27 % | | | 8 | C / C C D C C | F/PA5MS | 1 | 1.14 % | | 1 | 1.14 % | | | 9 | C D D C C | E79AN | 1 | 1.14 % | | 1 | 1.14 % | | | 10 | C C / C C D C C | LZ/US0KW | 1 | 1.14 % | | 1 | 1.14 % | |
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