| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AA1K | 343 | 29.62 % | | 512 | 31.66 % | | | 2 | C C D C C | AA4NC | 252 | 21.76 % | | 317 | 19.60 % | | | 3 | C D C C | E7CW | 249 | 21.50 % | | 383 | 23.69 % | | | 4 | C C D C C C | BA4QHY | 176 | 15.20 % | | 204 | 12.62 % | | | 5 | C D C C C | F4AIF | 82 | 7.08 % | | 109 | 6.74 % | | | 6 | D C D C | 3W9A | 18 | 1.55 % | | 30 | 1.86 % | | | 7 | C D D C | E73B | 11 | 0.95 % | | 13 | 0.80 % | | | 8 | C D D C C | A71WW | 11 | 0.95 % | | 14 | 0.87 % | | | 9 | C D C | B1Z | 6 | 0.52 % | | 9 | 0.56 % | | | 10 | D C D C C | 4X1MM | 6 | 0.52 % | | 8 | 0.49 % | | | 11 | D C D C C C | 6K2CFI | 2 | 0.17 % | | 2 | 0.12 % | | | 12 | C C / C C D C C | OM/UT2WW | 1 | 0.09 % | | 1 | 0.06 % | | | 13 | C C D D C | YL73R | 1 | 0.09 % | | 2 | 0.12 % | |
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