| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AH2O | 48 | 53.93 % | | 51 | 55.43 % | | | 2 | C C D C C | CT3KN | 12 | 13.48 % | | 12 | 13.04 % | | | 3 | C C D C C C | EA2CCG | 8 | 8.99 % | | 8 | 8.70 % | | | 4 | C D D C | A44A | 5 | 5.62 % | | 5 | 5.43 % | | | 5 | C D C C C | F6HQP | 4 | 4.49 % | | 4 | 4.35 % | | | 6 | C D C C | K1TT | 4 | 4.49 % | | 4 | 4.35 % | | | 7 | C D C | M4A | 2 | 2.25 % | | 2 | 2.17 % | | | 8 | D C D C | 4L5O | 2 | 2.25 % | | 2 | 2.17 % | | | 9 | D C D C C | 4X1DX | 1 | 1.12 % | | 1 | 1.09 % | | | 10 | C C D D C D C C | CT93Z1NY | 1 | 1.12 % | | 1 | 1.09 % | | | 11 | C C D / C D C C C | CT9/M0CCC | 1 | 1.12 % | | 1 | 1.09 % | | | 12 | C C D / C C C C | CT9/MOCC | 1 | 1.12 % | | 1 | 1.09 % | |
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