Expeditions Ranked By Unique Calls
An emerging and important measure of expeditions is their ability to reach a wide audience, not only big guns. Expeditions that are truly successful will invest special efforts in making QSOs with every possible radio amateur. The following table recognises those expeditions that have worked the most unique callsigns (as determined by logs uploaded to Club Log). The maximum duration of expedition considered in scope is 60 days.
The count of operators is determined from the expedition ADIFs, where this data is available.
More information and insights: How many DXers are there in the world?
Don't forget, the annual Cass Award celebrates single-operator DXpeditions that focus on making unique contacts.
Last updated: Tue, 15 Jun 2021 05:25:01 +0000
Tip: Click on the table headings to sort by any heading (eg by date, by number of QSOs)
| Callsign | Location | Year | Unique Calls | Total QSOs | Operators | Duration (days) | % Unique |
|---|---|---|---|---|---|---|---|
| T32C | EASTERN KIRIBATI | 2011 | 48,966 | 213,021 | 38 | 30 | 23.0 |
| D68C | COMOROS | 2001 | 43,673 | 168,695 | - | 20 | 25.9 |
| HK0NA | MALPELO ISLAND | 2012 | 43,156 | 195,331 | - | 27 | 22.1 |
| 2O12L | ENGLAND | 2012 | 38,842 | 69,644 | 111 | 47 | 55.8 |
| VP6DX | DUCIE ISLAND | 2008 | 38,754 | 183,584 | - | 17 | 21.1 |
| 7O6T | YEMEN | 2012 | 37,861 | 162,029 | 17 | 15 | 23.4 |
| 3B9C | RODRIGUEZ ISLAND | 2004 | 37,466 | 153,016 | 31 | 24 | 24.5 |
| FT5ZM | AMSTERDAM & ST PAUL ISLANDS | 2014 | 36,253 | 170,111 | 16 | 17 | 21.3 |
| K1N | NAVASSA ISLAND | 2015 | 35,601 | 140,013 | 18 | 14 | 25.4 |
| 3B7C | AGALEGA & ST BRANDON ISLANDS | 2007 | 33,758 | 137,484 | 19 | 18 | 24.6 |
| K5D | DESECHEO ISLAND | 2009 | 32,361 | 115,591 | - | 13 | 28.0 |
| ZL8X | KERMADEC ISLAND | 2010 | 31,068 | 148,570 | - | 18 | 20.9 |
| VK9DLX | LORD HOWE ISLAND | 2014 | 28,283 | 116,861 | 18 | 28 | 24.2 |
| VK0IR | HEARD ISLAND | 1997 | 27,498 | 80,971 | - | 14 | 34.0 |
| OJ0X | MARKET REEF | 2011 | 26,921 | 66,595 | - | 41 | 40.4 |
| J88HL | SAINT VINCENT | 2013 | 26,915 | 78,257 | 8 | 17 | 34.4 |
| OJ9X | FINLAND | 2017 | 26,159 | 66,771 | - | 26 | 39.2 |
| NH8S | SWAINS ISLAND | 2012 | 25,843 | 105,390 | 22 | 9 | 24.5 |
| 5T0SP | MAURITANIA | 2012 | 25,526 | 83,655 | 8 | 16 | 30.5 |
| FT4JA | JUAN DE NOVA, EUROPA | 2016 | 25,058 | 105,672 | - | 12 | 23.7 |
| TX5K | CLIPPERTON ISLAND | 2013 | 24,411 | 113,603 | 24 | 8 | 21.5 |
| XR0X | SAN FELIX ISLANDS | 2002 | 23,461 | 68,768 | - | 11 | 34.1 |
| TX6G | AUSTRAL ISLANDS | 2014 | 23,010 | 76,941 | 7 | 13 | 29.9 |
| K9W | WAKE ISLAND | 2013 | 22,989 | 100,032 | 13 | 13 | 23.0 |
| TX7M | MARQUESAS ISLANDS | 2011 | 22,819 | 81,744 | 19 | 13 | 27.9 |
| TO2SP | SAINT BARTHELEMY | 2017 | 22,755 | 63,004 | - | 15 | 36.1 |
| EP2A | IRAN | 2016 | 22,742 | 68,232 | - | 11 | 33.3 |
| R1MVA | MALYJ VYSOTSKIJ ISLAND | 1999 | 22,570 | 57,376 | - | 10 | 39.3 |
| PJ4C | BONAIRE | 2012 | 22,519 | 84,492 | 14 | 10 | 26.7 |
| T33A | BANABA ISLAND | 2013 | 22,469 | 83,098 | 19 | 12 | 27.0 |
| VP6DI | DUCIE ISLAND | 2002 | 22,405 | 51,101 | - | 10 | 43.8 |
| T33C | BANABA ISLAND | 2004 | 22,389 | 74,464 | - | 12 | 30.1 |
| 7QAA | MALAWI | 2015 | 22,217 | 67,306 | 13 | 19 | 33.0 |
| PJ7E | SINT MAARTEN | 2010 | 22,023 | 74,435 | 22 | 11 | 29.6 |
| VP8SGI | SOUTH GEORGIA ISLAND | 2016 | 21,540 | 82,845 | 14 | 9 | 26.0 |
| 9M0C | SPRATLY ISLANDS | 1998 | 21,154 | 65,511 | - | 13 | 32.3 |
| VK0EK | HEARD ISLAND | 2016 | 21,040 | 75,189 | 14 | 19 | 28.0 |
| 5X8C | UGANDA | 2013 | 21,001 | 81,377 | 21 | 10 | 25.8 |
| 5J0P | SAN ANDRES ISLAND | 2016 | 20,771 | 61,872 | 10 | 15 | 33.6 |
| 5K0K | SAN ANDRES ISLAND | 2019 | 20,747 | 64,421 | - | 13 | 32.2 |
| VP6R | PITCAIRN ISLAND | 2019 | 20,622 | 82,239 | - | 15 | 25.1 |
| E30FB | ERITREA | 2015 | 20,306 | 64,584 | - | 11 | 31.4 |
| T30D | WESTERN KIRIBATI | 2014 | 20,145 | 68,972 | 12 | 14 | 29.2 |
| S9DX | SAO TOME & PRINCIPE | 2011 | 20,104 | 66,697 | - | 13 | 30.1 |
| 9U4U | BURUNDI | 2013 | 19,788 | 70,324 | 11 | 10 | 28.1 |
| HU1DL | EL SALVADOR | 2020 | 19,456 | 60,196 | - | 14 | 32.3 |
| YI9PSE | IRAQ | 2010 | 19,396 | 50,401 | - | 9 | 38.5 |
| TJ9PF | CAMEROON | 2011 | 19,265 | 67,549 | 3 | 9 | 28.5 |
| 5V7EI | TOGO | 2019 | 19,152 | 50,224 | - | 13 | 38.1 |
| J5C | GUINEA-BISSAU | 2008 | 19,125 | 61,920 | - | 11 | 30.9 |
| 5W0M | SAMOA | 2013 | 18,861 | 66,994 | 18 | 13 | 28.2 |
| XT2C | BURKINA FASO | 2007 | 18,821 | 56,309 | - | 13 | 33.4 |
| 3C0W | ANNOBON | 2018 | 18,812 | 54,267 | - | 14 | 34.7 |
| XF4DL | REVILLAGIGEDO | 2006 | 18,692 | 58,632 | - | 18 | 31.9 |
| K4M | MIDWAY ISLAND | 2009 | 18,438 | 60,787 | - | 7 | 30.3 |
| FT4TA | TROMELIN ISLAND | 2014 | 18,344 | 70,798 | 7 | 11 | 25.9 |
| K5P-1 | PALMYRA & JARVIS ISLANDS | 2016 | 18,305 | 79,212 | 12 | 15 | 23.1 |
| 3B7A | AGALEGA & ST BRANDON ISLANDS | 2018 | 18,173 | 71,127 | - | 12 | 25.6 |
| KH1/KH7Z | BAKER HOWLAND ISLANDS | 2018 | 18,091 | 68,986 | - | 9 | 26.2 |