| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0AP | 463 | 46.77 % | | 868 | 50.00 % | | | 2 | C D C C C | K0ALT | 188 | 18.99 % | | 311 | 17.91 % | | | 3 | C C D C | AB1J | 147 | 14.85 % | | 284 | 16.36 % | | | 4 | C C D C C | AB0RX | 100 | 10.10 % | | 146 | 8.41 % | | | 5 | C C D C C C | KA0PQW | 86 | 8.69 % | | 118 | 6.80 % | | | 6 | C D C | K2A | 1 | 0.10 % | | 3 | 0.17 % | | | 7 | C D C C / C C D | N2WQ/VE3 | 1 | 0.10 % | | 1 | 0.06 % | | | 8 | C C D C C C / C D | VE3JDF/W4 | 1 | 0.10 % | | 1 | 0.06 % | | | 9 | C D / C D C C | W3/N5ZC | 1 | 0.10 % | | 1 | 0.06 % | | | 10 | C D C C C / D | W3DQN/5 | 1 | 0.10 % | | 1 | 0.06 % | | | 11 | C D / C C D C | W4/KP4Y | 1 | 0.10 % | | 2 | 0.12 % | |
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