| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C C | AA1QD | 561 | 26.95 % | | 702 | 25.97 % | | | 2 | C C D C | AA1K | 503 | 24.16 % | | 779 | 28.82 % | | | 3 | C C D C C C | CT7AGZ | 484 | 23.25 % | | 578 | 21.38 % | | | 4 | C D C C | D1DX | 263 | 12.63 % | | 321 | 11.88 % | | | 5 | C D C C C | C6AGU | 137 | 6.58 % | | 168 | 6.22 % | | | 6 | C D D C | E72U | 37 | 1.78 % | | 46 | 1.70 % | | | 7 | C D D C C | E74UK | 26 | 1.25 % | | 29 | 1.07 % | | | 8 | D C D C C | 3V8SS | 23 | 1.10 % | | 25 | 0.92 % | | | 9 | C D C | C4W | 21 | 1.01 % | | 23 | 0.85 % | | | 10 | D C D C | 4L8A | 15 | 0.72 % | | 20 | 0.74 % | | | 11 | C C D C C C / C C C | IK1BPL/QRP | 2 | 0.10 % | | 2 | 0.07 % | | | 12 | D C D D C | 4U75B | 1 | 0.05 % | | 1 | 0.04 % | | | 13 | D C D C C C | 9A1CKH | 1 | 0.05 % | | 1 | 0.04 % | | | 14 | C / C D D C | F/E72T | 1 | 0.05 % | | 1 | 0.04 % | | | 15 | C / C C D C C | F/DJ4MZ | 1 | 0.05 % | | 1 | 0.04 % | | | 16 | C D / C D D C | I0/S58Y | 1 | 0.05 % | | 1 | 0.04 % | | | 17 | C C D D C C C | HA70MAV | 1 | 0.05 % | | 1 | 0.04 % | | | 18 | C C D D D D C | OH3077F | 1 | 0.05 % | | 1 | 0.04 % | | | 19 | C C D D C C C C C C C C PC19STAYSAFE | 1 | 0.05 % | | 1 | 0.04 % | | | | 20 | C D / C D C C C | S5/M0MPM | 1 | 0.05 % | | 1 | 0.04 % | | | 21 | C C D C C / C C C | YU1LM/QRP | 1 | 0.05 % | | 1 | 0.04 % | |
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