| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C C C | BD7MHZ | 112 | 38.75 % | | 117 | 38.74 % | | | 2 | C C D C | BP0P | 63 | 21.80 % | | 66 | 21.85 % | | | 3 | C C D C C | BD2RJ | 59 | 20.42 % | | 60 | 19.87 % | | | 4 | C D C C | E7CW | 12 | 4.15 % | | 12 | 3.97 % | | | 5 | C D C C C | I2XIP | 8 | 2.77 % | | 10 | 3.31 % | | | 6 | D C D C C C | 4I1EAY | 8 | 2.77 % | | 8 | 2.65 % | | | 7 | D C D C | 4E3X | 7 | 2.42 % | | 8 | 2.65 % | | | 8 | C D C | B7M | 5 | 1.73 % | | 6 | 1.99 % | | | 9 | C D D C C | A71AM | 5 | 1.73 % | | 5 | 1.66 % | | | 10 | D C D C C | 4F3BZ | 4 | 1.38 % | | 4 | 1.32 % | | | 11 | C D D C C C | E25ETT | 2 | 0.69 % | | 2 | 0.66 % | | | 12 | C C D D C | HS49L | 1 | 0.35 % | | 1 | 0.33 % | | | 13 | C D C C C / C C D | N6HPX/DU1 | 1 | 0.35 % | | 1 | 0.33 % | | | 14 | C C D D D C C C C | OH100SRAL | 1 | 0.35 % | | 1 | 0.33 % | | | 15 | C D D C | S53R | 1 | 0.35 % | | 1 | 0.33 % | |
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