| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C | K0AD | 637 | 43.81 % | | 1191 | 48.02 % | | | 2 | C D C C C | K0BLT | 281 | 19.33 % | | 434 | 17.50 % | | | 3 | C C D C | AB1J | 235 | 16.16 % | | 385 | 15.52 % | | | 4 | C C D C C | AB0RX | 160 | 11.00 % | | 269 | 10.85 % | | | 5 | C C D C C C | GD4EIP | 128 | 8.80 % | | 180 | 7.26 % | | | 6 | C C D C C / C D | KP4WU/W4 | 2 | 0.14 % | | 2 | 0.08 % | | | 7 | C D C C / D | W0NA/5 | 2 | 0.14 % | | 2 | 0.08 % | | | 8 | D C D C C | 4J3DJ | 1 | 0.07 % | | 1 | 0.04 % | | | 9 | C D C | K4A | 1 | 0.07 % | | 1 | 0.04 % | | | 10 | C C D C C / D | KE8GX/4 | 1 | 0.07 % | | 1 | 0.04 % | | | 11 | C D D C | S51U | 1 | 0.07 % | | 1 | 0.04 % | | | 12 | C C D C C C / C D | VE3CWN/W4 | 1 | 0.07 % | | 2 | 0.08 % | | | 13 | C D / C C D C | W1/SP4Z | 1 | 0.07 % | | 4 | 0.16 % | | | 14 | C D / C C D C C C | W1/YO7ARY | 1 | 0.07 % | | 1 | 0.04 % | | | 15 | C D C C C / D | W3DQN/5 | 1 | 0.07 % | | 1 | 0.04 % | | | 16 | C D / C C D C C | W4/VE3RZ | 1 | 0.07 % | | 5 | 0.20 % | |
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