| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C C D C | AC1U | 149 | 44.74 % | | 192 | 47.41 % | | | 2 | C C D C C | CN2AM | 65 | 19.52 % | | 74 | 18.27 % | | | 3 | C C D C C C | DF0DIG | 48 | 14.41 % | | 53 | 13.09 % | | | 4 | C D C C C | F5KSE | 14 | 4.20 % | | 15 | 3.70 % | | | 5 | C D D C | E73M | 10 | 3.00 % | | 11 | 2.72 % | | | 6 | C D C C | E7DX | 8 | 2.40 % | | 8 | 1.98 % | | | 7 | D C D C | 3Z6V | 8 | 2.40 % | | 12 | 2.96 % | | | 8 | C D D C C | S51CK | 7 | 2.10 % | | 7 | 1.73 % | | | 9 | C C D D C | LG80T | 6 | 1.80 % | | 8 | 1.98 % | | | 10 | C D C | C4W | 5 | 1.50 % | | 6 | 1.48 % | | | 11 | C C D D C C C | DR50DIG | 3 | 0.90 % | | 5 | 1.23 % | | | 12 | D C D C C | 9A1AA | 3 | 0.90 % | | 4 | 0.99 % | | | 13 | D C D D C | 9A73A | 1 | 0.30 % | | 2 | 0.49 % | | | 14 | C C D D D C | EE100V | 1 | 0.30 % | | 1 | 0.25 % | | | 15 | C C D D C C | EI19RE | 1 | 0.30 % | | 2 | 0.49 % | | | 16 | C C / C D C C C | LX/G1TPA | 1 | 0.30 % | | 1 | 0.25 % | | | 17 | C C D D D C C C | LY800SMG | 1 | 0.30 % | | 1 | 0.25 % | | | 18 | C C D D D C C | LZ116RF | 1 | 0.30 % | | 1 | 0.25 % | | | 19 | D C D C C C | 9A1CPB | 1 | 0.30 % | | 2 | 0.49 % | |
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