| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C D C C C | K1VWQ | 26 | 43.33 % | | 26 | 42.62 % | | 2 | C C D C C C | KA3WOD | 9 | 15.00 % | | 9 | 14.75 % | | 3 | C D C C | K8BF | 8 | 13.33 % | | 8 | 13.11 % | | 4 | C C D C | KT5C | 6 | 10.00 % | | 6 | 9.84 % | | 5 | C C D C C | AA3YW | 6 | 10.00 % | | 7 | 11.48 % | | 6 | C D C | N4A | 3 | 5.00 % | | 3 | 4.92 % | | 7 | C D D C C C | K38CEW | 1 | 1.67 % | | 1 | 1.64 % | | 8 | C D C C D | W8CS0 | 1 | 1.67 % | | 1 | 1.64 % | |
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