| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | E3SGB | 457 | 37.64 % | | 527 | 35.06 % | | | 2 | C C D C C C | CR7BPG | 286 | 23.56 % | | 313 | 20.83 % | | | 3 | C D C C | K0GR | 216 | 17.79 % | | 262 | 17.43 % | | | 4 | C C D C C | AA0RW | 135 | 11.12 % | | 148 | 9.85 % | | | 5 | C C D C | AA6H | 68 | 5.60 % | | 75 | 4.99 % | | | 6 | C D C | K0K | 48 | 3.95 % | | 59 | 3.93 % | | | 7 | C C D | JS8 | 1 | 0.08 % | | 1 | 0.07 % | | | 8 | C D C C D C | K8GE3A | 1 | 0.08 % | | 1 | 0.07 % | | | 9 | C D C C C D C | N4TUN2A | 1 | 0.08 % | | 1 | 0.07 % | | | 10 | C D C C C C C | W4CRVTN | 1 | 0.08 % | | 1 | 0.07 % | |
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