| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | AA0AW | 2286 | 23.49 % | | 23994 | 20.12 % | | 2 | C C D C C C | AF0EFS | 2136 | 21.95 % | | 14827 | 12.43 % | | 3 | C D C C | A4MC | 1634 | 16.79 % | | 27429 | 23.00 % | | 4 | C D C C C | A4EET | 1564 | 16.07 % | | 13537 | 11.35 % | | 5 | C C D C | AA0A | 1344 | 13.81 % | | 27810 | 23.32 % | | 6 | C D C | B4R | 102 | 1.05 % | | 920 | 0.77 % | | 7 | D C D C C | 3B8HC | 88 | 0.90 % | | 1279 | 1.07 % | | 8 | C D D C C | A31MM | 86 | 0.88 % | | 1839 | 1.54 % | | 9 | C D D C | A35T | 75 | 0.77 % | | 2364 | 1.98 % | | 10 | D C D C | 3Z0X | 57 | 0.59 % | | 2116 | 1.77 % | | 11 | D C D C C C | 4U1ITU | 20 | 0.21 % | | 327 | 0.27 % | | 12 | C D C C / D | K1GU/4 | 19 | 0.20 % | | 290 | 0.24 % | | 13 | C D C C / C | F3OA/P | 17 | 0.17 % | | 87 | 0.07 % | | 14 | C C D C C C / C | EM9WFF/P | 17 | 0.17 % | | 76 | 0.06 % | | 15 | C D C C C / C | F5MCC/P | 15 | 0.15 % | | 30 | 0.03 % | | 16 | C C D / C D C C | HI8/N3SY | 14 | 0.14 % | | 195 | 0.16 % | | 17 | C D C C C / D | K2IWQ/4 | 14 | 0.14 % | | 50 | 0.04 % | | 18 | C C D C C C C | AI6OCWT | 13 | 0.13 % | | 29 | 0.02 % | | 19 | C C D D C C C | DF50MUC | 13 | 0.13 % | | 119 | 0.10 % | | 20 | C D D C C C | E71EEE | 13 | 0.13 % | | 62 | 0.05 % | | 21 | C C D D C C | EM90WA | 12 | 0.12 % | | 58 | 0.05 % | | 22 | C D C C / C C | K0PC/MO | 9 | 0.09 % | | 13 | 0.01 % | | 23 | C C D / C C D C C | CT1/DJ7PR | 9 | 0.09 % | | 136 | 0.11 % | | 24 | C C D / C D C C C | KP4/K6TOP | 9 | 0.09 % | | 48 | 0.04 % | | 25 | C C D / C C D C | HH2/WS6X | 8 | 0.08 % | | 183 | 0.15 % | | 26 | C C D C C C / D | IK3UNA/1 | 8 | 0.08 % | | 69 | 0.06 % | | 27 | C C D / C C D C C C |
CT9/DL5AXX | 7 | 0.07 % | | 103 | 0.09 % | | 28 | C D C C C / C C | K4EET/AE | 7 | 0.07 % | | 8 | 0.01 % | | 29 | C C D C / D | AL7L/7 | 7 | 0.07 % | | 25 | 0.02 % | | 30 | C C D C / C | HK1X/M | 6 | 0.06 % | | 28 | 0.02 % | | 31 | C C D C C / C | AA1AC/N | 6 | 0.06 % | | 11 | 0.01 % | | 32 | C C D C C / C C | AI4IC/TN | 5 | 0.05 % | | 9 | 0.01 % | | 33 | C C / C D C C C | FG/F5HRY | 5 | 0.05 % | | 68 | 0.06 % | | 34 | C C D D C | LY16W | 5 | 0.05 % | | 60 | 0.05 % | | 35 | C C D C C C C C | DM0MORSE | 5 | 0.05 % | | 18 | 0.02 % | | 36 | C C / C C D C C | FG/SP5ES | 4 | 0.04 % | | 65 | 0.05 % | | 37 | C C D C C C / C D | IZ3YPS/W5 | 4 | 0.04 % | | 25 | 0.02 % | | 38 | C D / C C D C C | P4/DL5CW | 4 | 0.04 % | | 18 | 0.02 % | | 39 | C C / C D C C | FJ/N9SW | 4 | 0.04 % | | 11 | 0.01 % | | 40 | C / C D C C C | F/G0PZA | 4 | 0.04 % | | 102 | 0.09 % | | 41 | C D C C C / C C C | K4IBZ/QRP | 4 | 0.04 % | | 5 | 0.00 % | | 42 | C C D C / C C C | AG4T/QRP | 4 | 0.04 % | | 4 | 0.00 % | | 43 | C C D C C C / C C | VP8CMH/MM | 4 | 0.04 % | | 7 | 0.01 % | | 44 | C C D C C C / C C C |
KA8ONW/QRP | 3 | 0.03 % | | 3 | 0.00 % | | 45 | C C / C C D C C C | FG/IW5ELA | 3 | 0.03 % | | 38 | 0.03 % | | 46 | C C D C C C C C C | KP4CPCNST | 3 | 0.03 % | | 3 | 0.00 % | | 47 | C D C C C C C | G2FEEIE | 3 | 0.03 % | | 4 | 0.00 % | | 48 | C C D C C / C D | AH6EZ/W7 | 3 | 0.03 % | | 3 | 0.00 % | | 49 | D C C D C | 3XY1E | 2 | 0.02 % | | 334 | 0.28 % | | 50 | C D / C D C C | J6/K9AW | 2 | 0.02 % | | 16 | 0.01 % | | 51 | C D C C / C C C | N7OC/QRP | 2 | 0.02 % | | 3 | 0.00 % | | 52 | C C D D D C C C | DM200PZL | 2 | 0.02 % | | 32 | 0.03 % | | 53 | D C / C C D C C | 4O/RL3BX | 2 | 0.02 % | | 9 | 0.01 % | | 54 | D C / C C D C | 4W/PE7T | 2 | 0.02 % | | 27 | 0.02 % | | 55 | D C D C C C C C | 3U5LTEHT | 2 | 0.02 % | | 4 | 0.00 % | | 56 | C C D D D C C | LZ113RF | 2 | 0.02 % | | 10 | 0.01 % | | 57 | C C D C / C D C C C |
CE0Y/W7YAQ | 2 | 0.02 % | | 7 | 0.01 % | | 58 | C D D C C C C / D | R44YETI/1 | 2 | 0.02 % | | 31 | 0.03 % | | 59 | C D / C D D C | I0/S53R | 1 | 0.01 % | | 16 | 0.01 % | | 60 | D C D / C D C C | 8R1/K9KX | 1 | 0.01 % | | 11 | 0.01 % | | 61 | D C D D C C | 4J90RD | 1 | 0.01 % | | 1 | 0.00 % | | 62 | C D / C D C C / C C C | J6/W5SJ/QRP | 1 | 0.01 % | | 2 | 0.00 % | | 63 | C C D D C C C C C | EM20UASAV | 1 | 0.01 % | | 3 | 0.00 % | | 64 | D C / C C D D C C | 9A/LZ73PM | 1 | 0.01 % | | 26 | 0.02 % | | 65 | C C D C C C / D C D |
JA0RQV/6Y5 | 1 | 0.01 % | | 12 | 0.01 % | | 66 | C / C C D C C C | F/OM2ZAF | 1 | 0.01 % | | 1 | 0.00 % | | 67 | C D C C C / C D | K3DMG/P4 | 1 | 0.01 % | | 8 | 0.01 % | | 68 | D C D D D C C | 9A701AD | 1 | 0.01 % | | 2 | 0.00 % | | 69 | D C D D C C C | 3Z51OXU | 1 | 0.01 % | | 3 | 0.00 % | | 70 | C D C C / C C D | K8JH/VP9 | 1 | 0.01 % | | 1 | 0.00 % | | 71 | D C D D D D C C | 4K1926HR | 1 | 0.01 % | | 1 | 0.00 % | | 72 | C C D C / C D | KL2A/W3 | 1 | 0.01 % | | 4 | 0.00 % | | 73 | C D C C C / C C / C C | G0HUZ/MM/MM | 1 | 0.01 % | | 1 | 0.00 % | | 74 | D C / C D C C | 4W/N1YC | 1 | 0.01 % | | 35 | 0.03 % | | 75 | D C / C C D C C C | 5B/WA1PGB | 1 | 0.01 % | | 2 | 0.00 % | | 76 | C C D C C / D | CE3OP/2 | 1 | 0.01 % | | 1 | 0.00 % | | 77 | D C D / C C D C C | 5Z4/DF3FS | 1 | 0.01 % | | 6 | 0.01 % | | 78 | C C D C C / C C C | ON6KZ/QRP | 1 | 0.01 % | | 1 | 0.00 % | | 79 | D C C D C C | 8RN8RN | 1 | 0.01 % | | 2 | 0.00 % | | 80 | C D / C D C C C | P4/K3DMG | 1 | 0.01 % | | 7 | 0.01 % | | 81 | C D D C C C C C | J42PIKRA | 1 | 0.01 % | | 12 | 0.01 % | | 82 | C D D D C C C | S570ABC | 1 | 0.01 % | | 9 | 0.01 % | | 83 | C D D C / C C C | S57V/QRP | 1 | 0.01 % | | 1 | 0.00 % | | 84 | C D D C C / C | V31JZ/P | 1 | 0.01 % | | 83 | 0.07 % | | 85 | C / C D D C | F/E72T | 1 | 0.01 % | | 4 | 0.00 % | | 86 | C D / C C D C C C | W5/IZ0UIN | 1 | 0.01 % | | 2 | 0.00 % | | 87 | C C D C / C C | WZ4M/SW | 1 | 0.01 % | | 2 | 0.00 % | | 88 | C C D D D D C C C C C C YO2016BALKAN | 1 | 0.01 % | | 1 | 0.00 % | | |
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