| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AB2E | 321 | 25.85 % | | 578 | 32.73 % | | | 2 | C C D C C | AB0RX | 312 | 25.12 % | | 394 | 22.31 % | | | 3 | C C D C C C | BD4UNT | 268 | 21.58 % | | 320 | 18.12 % | | | 4 | C D C C | E7CW | 156 | 12.56 % | | 226 | 12.80 % | | | 5 | C D C C C | C6AGU | 96 | 7.73 % | | 115 | 6.51 % | | | 6 | C D C | B1Z | 28 | 2.25 % | | 43 | 2.43 % | | | 7 | C D D C | A44A | 18 | 1.45 % | | 27 | 1.53 % | | | 8 | D C D C C | 4K6FO | 12 | 0.97 % | | 17 | 0.96 % | | | 9 | D C D C | 3B8M | 12 | 0.97 % | | 26 | 1.47 % | | | 10 | C D D C C | S51YI | 11 | 0.89 % | | 12 | 0.68 % | | | 11 | D C D C C C | 9A1CCY | 1 | 0.08 % | | 1 | 0.06 % | | | 12 | C C D / C C D C C C | CT7/DL6IAK | 1 | 0.08 % | | 1 | 0.06 % | | | 13 | C C D / C C D C C | IS0/OM2TW | 1 | 0.08 % | | 1 | 0.06 % | | | 14 | C C / C D D C | ON/S58J | 1 | 0.08 % | | 1 | 0.06 % | | | 15 | C C D C C / C | RA3AL/M | 1 | 0.08 % | | 1 | 0.06 % | | | 16 | C D C C C / C | F6GNP/M | 1 | 0.08 % | | 1 | 0.06 % | | | 17 | C D D C C C | S57MPU | 1 | 0.08 % | | 1 | 0.06 % | | | 18 | C C D C C C C | SP1ATOM | 1 | 0.08 % | | 1 | 0.06 % | |
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