| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AC1U | 176 | 33.02 % | | 212 | 34.98 % | | | 2 | C C D C C | DB5SM | 127 | 23.83 % | | 147 | 24.26 % | | | 3 | C C D C C C | CT2HOV | 111 | 20.83 % | | 119 | 19.64 % | | | 4 | C D C C C | F1FPL | 50 | 9.38 % | | 53 | 8.75 % | | | 5 | C D D C | A42K | 14 | 2.63 % | | 14 | 2.31 % | | | 6 | D C D C | 4L0G | 9 | 1.69 % | | 10 | 1.65 % | | | 7 | C D D C C | S51CK | 9 | 1.69 % | | 9 | 1.49 % | | | 8 | C D C | C4W | 8 | 1.50 % | | 9 | 1.49 % | | | 9 | C D C C | E7CW | 8 | 1.50 % | | 11 | 1.82 % | | | 10 | D C D C C | 3V8SS | 4 | 0.75 % | | 4 | 0.66 % | | | 11 | C C D D C | LY31A | 4 | 0.75 % | | 4 | 0.66 % | | | 12 | D C D C C C | 2E0MNG | 3 | 0.56 % | | 3 | 0.50 % | | | 13 | D C D D C | 9A50Y | 2 | 0.38 % | | 2 | 0.33 % | | | 14 | C C D D C C C | DL73TXL | 2 | 0.38 % | | 2 | 0.33 % | | | 15 | C C D D C C | EO50FF | 2 | 0.38 % | | 3 | 0.50 % | | | 16 | C C D C C C / C | EI2IJB/M | 1 | 0.19 % | | 1 | 0.17 % | | | 17 | C C D D D C C C C | OH100SRAL | 1 | 0.19 % | | 1 | 0.17 % | | | 18 | C D C C C / C | M0PLX/M | 1 | 0.19 % | | 1 | 0.17 % | | | 19 | C D D C C C | S57PKT | 1 | 0.19 % | | 1 | 0.17 % | |
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