The DXCC entity of Nauru was added to the ARRL DXCC List in 1956, with QSOs counting from 1945-11-15.
QST July 1956, p75, in DXCC Notes:
"Announcement is hereby made of the addition of the island Nauru to the A.R.R.L. Countries List. This island is located in the west Pacific Ocean 26 miles south of the Equator, longitude 167 Degrees E and lies west of the Gilbert Islands. This announcement follows as a result of the operation from Nauru by G2RO and the subsequent submission of a confirmation by a DXCC member.
DXCC credit will be given for Nauru starting September 1, 1956, for creditable confirmations dated on or after November 15, 1945. <snip>".
Location map (credit: Encyclopedia Brittanica)
Prefix: C2 (from 1969-04-01), previously VK9.
Ranking in "Most Wanted" league.
The IOTA reference for Nauru is OC-031
Whitelisting
Nauru is a whitelisted DXCC entity. The following table lists stations known to have been QRV from Nauru and which are thought to be good for DXCC credit.
The callsigns below are the only ones that Club Log will map to Nauru. These callsigns have been taken from QSL cards and other sources.
Callsigns that are not listed below, or QSOs outside the exception date range, will be not be mapped to Nauru but will be mapped as INVALID.
Please advise any missing valid Na callsigns to Alan, 5B4AHJ, or via the Help Desk.
| Call | Date/Note (Check the callsign in Call Tester to see exact dates, QSLs and additional notes) |
| VK9TW | 1956 - July/August |
| VK9AM | 1963 - March until 1969 - April QSL required |
| VK9BH | 1963 - June/July |
| VK9RJ | 1968 - March/April |
| VK9RJ | 1969 - March/April |
| C21JW | 1969 - April until 1970 - May |
| C21GB | 1970 - July until 1971 - February |
| C21AA | 1970 - November until 1980 - September |
| C20ED | 1971 - December QSL required |
| C29ED | 1971 - December until 1974 - May |
| C21TL | 1971 - December until 1973 - June. |
| JA1MCU/C21, /JA1OCA/C21, JE1CKA/C21, JA0CUV/C21 | 1973 - June/July JA1OCA/C21 and JA0CUV/C21 QSLs required |
| JR1GWR/C21 | 1973 - December |
| C21NP | 1974 - May-August |
| C21DX | 1974 - August/September QSL required |
| JR1GWR/C21, C21/VE3EZM | 1974 - September/October QSLs required |
| C21NW | 1974 - 1978 dates wanted. QSL required |
| C21JA | 1975 - February, May, July, September QSL required |
| C21JA | 1976 - May QSL required |
| C21ME | 1976 - August/September QSL required |
| C21PS | 1976 - October until 1977 - February QSL required |
| C21IB | 1976 - November until 1980 - December QSL required |
| C21EF | 1977 - June until 1982 QSL required |
| C21MF | 1978 - June until 1979 - September QSL required |
| C21AA | 1981 - July |
| C21PS | 1981 - November/December QSL required |
| C21DM | 1982 - January until August QSL required |
| C21KH | 1983-87 Resident |
| C21VG | 1985 ongoing - resident QSL required |
| C21AA | 1985 - April |
| C21LD | 1985 - January until 1986 - September |
| C2/WB6GFJ | 1987 - August |
| C21JM | 1990 - 1991 QSL required |
| C21DJ | 1991 - October until 2010 - October |
| C21/VK2BEX | 1993 - April |
| C21/KC6DX, C21/KC6FM | 1993 - September |
| C21/ZL1AMO | 1993 - November |
| C21/MI, (C21MI), C21/YI (C21YI) | 1994 - March |
| C21/ZL1AMO | 1994 - May, September |
| C21IG, C21/JA3IG | 1994 - September |
| C21/DJ1RL, C21JA (C21/JA) | 1994 - October QSLs required |
| C21/W9GW | 1995 - January/February QSL required |
| C21/ZL1AMO | 1995 - April/May |
| C21TT | 1995 - July until 2000 - September |
| C21HC, C21HC/QRP | 2000 - January |
| C21HC, C21HC/QRP | 2001 - January |
| C21XU | 2001 - September |
| C21HC, C21HC/QRP | 2002 - January |
| C21HC, C21HC/QRP | 2003 - January |
| C21HC, C21HC/QRP | 2004 - January |
| C21DL | 2004 - April |
| C21HC, C21HC/QRP | 2005 - January |
| C21DL | 2005 - February/March |
| C21HC, C21HC/QRP | 2007 - January |
| C21HC, C21HC/QRP | 2008 - January |
| C21HC, C21HC/QRP | 2009 - January |
| C21NA | 2012 - January/February QSL required |
| C21BN | 2012 - September |
| C21BN | 2013 - Seotember |
| C21DX | 2013 - October |
| C21BN | 2014 - July/August |
| C21BN | 2015 - February |
| C21DA | 2016 - July |
| C21GJ | 2018 - September/October |
| C21WW | 2019 - September |
| C21AA, C21GW | 2020 - February |
| C21TS | 2023 - March |
| C21BT | 2023 - May |
| C21TS | 2023 - August, on going (resident) |
| The ones that didn't count | |
| C21DD | 1980s - not known by supposed QSL manager. |
| C21CG | Busted C21GC |
| C21AF | Maritine Mobile. |
Acknowledgements and references
Hamgallery Nauru, Oceania, C2
Les Nouvelles DX C2 - Nauru
Wikipedia - Nauru