The DXCC entity of Gilbert & Ellice Islands and Ocean Islands, VR1 is listed in the ARRL countries list published in February 1947. 

In 1979, the Republic of  Kiribati was created, and the DXCC country of Gilbert & Ellice Islands and Ocean Islands became Western Kiribati, T30. Ocean Island .subsequently became the separate entity of Banaba Island, T33.


Location map (credit: Martin W. Lewis, GeoCurrents) - look for Gilbert Islands:



Tarawa Atoll map (credit Wikipedia)


Prefix: VR1, T3A, T30 from 1979-10-01


Ranking in "Most Wanted" league 


The IOTA reference for Western Kiribati  is OC-017


Whitelisting

Western Kiribati is a whitelisted DXCC entity. The following table lists stations known to have been QRV from Western Kiribati and which are thought to be good for DXCC credit.
The callsigns below are the only ones that Club Log will map to Western  Kiribati.  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 Western  Kiribati but will be mapped as INVALID.
Please advise any missing valid Western  Kiribati  callsigns to Alan, 5B4AHJor via the Help Desk.


CallDate/Note (follow callsign links to see exact dates, QSLs and additional notes)
VR1A1947 - 48
VR1C
1949 - 71
VR1B1950 - August until 1953 - August
VR1A1950 - March until 1966 - December
VR1D 1950-51 QSL required
VR1RO1954 - December until 1955 - January
VR1B
1956 - March
VR1D1960
VR1E1960 - June until 1962 -June QSL required
VR1F1960 - September until 1961 - September
VR1J, VR1K1961 - October until 1962 - Decemberr
VR1M1961 - September until 1962 - June
VR2BZ/VR11962 - August/September
VR1L1962 - August until December
VR1H1963 - July
VR1L1964 - June 
VR1S1964 - December until 1965 - September
VR1Z
1966 - February
VR1DY1968 - February? QSL required.
VR1P1968 - October until December
VR1O1969 - April until 1970 - December. QSL required
VR1Q1969 - April until 1970 - January QSL required
VR1I1969 - June until 1970 - January
VR1V1970 - January
VR1AA1971 - August until 1977 - February
VR1AD1972 - June until 1976 - July QSL required
VR1AP1974 - March/April
VR1AR1974 - January  until June, also July /August. QSL required
VR1AR/A1974 - June/July
VR1AH1975 - May until 1976 - July. QSL required
VR1Z
1975 - December
VR1AI1976 - March to 1977 - February QSL required.
VR1AJ1976 - January until 1977 - Janua
VR1AK1976 - March/April
4Z4TT/VR1, VR1AP1977 - April  VR1AP QSL required
VR1X1977 - April until June
VR1AV1977 - June/July QSL required
VR1AY1978 - July until 1979 - May
VR1AE, VR1BF1979 - circa January-May QSLs required
VR1AW1979 - January until April
VR1BD1979 - January until September
T3KJ1979 - December
T3AT, T3AY1980 - April until December
T3AC1980 - February until 1981 - January
T3AZ1980 - September
T3AF1980 - November
T30AT1981 - January until 1987 - February
T30AC1981 - February until 1992 - November
T30EFW1981 - March QSL required
T30AB1981 - 2007 Permanent resident QSL required
T30DB1981 - June until 1984 - July
T30AP1981 - August/September QSL required
T30BF, T30BG1981 - September
T30AE1981 - August until December QSL required
T30KC1981 - November/December QSL required
T30BO1982 - February
T30BY1982 - 88
T30CB1982 - August
T30AY1983 - 1988
T30CH1983 - January until 1984 - March
T30CJ1983 - March/April
T30DX1983 - July QSL required
T30CT1983 - December until 1984 - December
T30CW1984 - May
T30ZK1985 - Marc
T30/GM4CKM1986 - Jan
T30RY1987 - October
T30BC1987 - October until 1988 - January
T30ZK1988 - February
T30DF1988 - March
T30JL, T30MA1988 - March/April
T30JS, T30NL1988 - March
T30BC1988 - March until 1990 - November
T30RA1989 - April/May
T30XDK, T30DK1989 - July
T30SS1990 - January QSL required
T30KK1990 - October QSL re
T30X1990 - November QSL required
T30A1990 - December until 1993 - July
T30DC1989 - April
T30XAC1989 - July
T30DJ1989 - March/April
T30DN1989 - August/September QSL required
T30NAD1989 - 1993
T30JH1990 - 2000 Multiple operations.
T30KY
1990 - May QSL required
T30F1990 - October QSL required
T30KK
T30WV1990 - November QSL required
T30KY
1991 - February QSL required
T30CT1991 - February/March
T30DQ, T30DR, T30DS, T30DT1991 - February
T30DP1991 - March until 1996 - April
T30RT 
1991 - October to 1994 - December
T30GD, T30YL1991 - December
T30HC1992 - January
T30RE1992 - January/February
T30NY, T30QQ1992 - February QSL required
T30AA1992 - June
T30IG, T30IL, T30KT, T30TX1992 - August T30KT QSL required
T30MD1992 - September/October QSL required
T30W1992 - December on going. 
T30B1993 - February QSL required 
T30NJ1993 - March until 1995 - Jul
T30P, T30AJ1993 - February
T30D1993 - April
T30NA1993 - September
T30DW1993 - November until 1996 - December
T30HC (T30HC/QRP), T30EB1994 - January T30EB QSL required
T30CC, T30JJ1994 - February
T30RN1994 - June/July
T30BH1994 - September
T30GI1994 - September

T30HC (T30HC/QRP)
1994 - December until 1995 - January
T30EA1994 - January QSL required
T30EG1995 - March until 1996 - November QSL required
T30XC1996 - January
T30BH1996 - May
T30NAS1996 - August until 1997 - September
T30WP1997 - April/May
T30RW1998 - May/June
T30CT
1998 - December QSL required
T30HC (T30HC/QRP)
1998 - December until 1999 - January
T30RD1999 - March
T30CW, T30Y1999 - October/November
T30HC (T30HC/QRP)
2000 - January
T30HC (T30HC/QRP)
2001 - January
T30AN2001 - March
T30XU2001 - September
T30ES2001 - September until 2002 - February
T30HC (T30HC/QRP)
2002 - February
T30TM2002 - April. Permanent resident.
T30CXX2002 - April
T30HC (T30HC/QRP)
2003 - January/February
T30ONM2003 - March  not verified, - possible pirate. QSL required
T30VB2003 - October
T30M, T30Z2003 - December
T30HC (T30HC/QRP)
2004 - February
T30TW, T30ZF2004 - March
T30C, T30LP, T30AD, T30CA, T30MR, T30ND, T30OA, T30P, T30NN, T30PA, T30RR, T30WB2004 - March/April QSLs required 
T30KU2004 - October
T30T2004 - October/November
T30HC (T30HC/QRP)
2005 - January
T30LS
2005 - September
T30HC (T30HC/QRP)
2006 - January
T30CXX2006 - April
T30AV2008 - June
T30XX2006 - December until 2007 - January
T30HC (T30HC/QRP)
2007 - January
T30XX2007 - September
T30HC (T30HC/QRP)
2008 - January
T30XX2008 - October
T30XX
2008 - November
T30HC (T30HC/QRP)
2009 - January
T30M
2009 - April, and October QSL required
T30DW
2009 - April
T30IW,T30KI2009 - November T30IW QSL required
T30GM2009 - September
T30AW2009 - October
T30HC
2010 - January
T30XG2010 - June
T30HC
2011 - January
T30OU, T30YA2011 - February
T30RH, T30AQ
2011 - March 
T30BN2012 - June and later, sporadically
T30TT2012 - August until 2013 - March. QSL required 
T30YP2012 - October Info and QSL req
T30PY, T30SIX2012 - October T30SP QSL required
T30MK2012 - October on going, permanent resident
T30FL
2013 - October/November QSL required
T30PT, T30KV2013 - November
T30KN, T30TS2013 - November/December
T30D2014 - October
T30AR2016 - July
T30CW2016 - September
T30BB2016 - October QSL required
T30JY, T30KJ, T30MA, T30VE2016 - November T30MA QSL required
T30IU2017 - a resident QSL required
T30RG2017 - July
T30L2019 - September
T30GC2019 - October
T30NH2020 - January. QSL required


The ones that didn't count or happen

VR1Q1967 and earlier - pirate (DXNS #273)
T30DC2004 - unknown reason
T30DX2006 - January - cancelled, no available flights
T30ET2020 - Postponed due to Covid-19 travel restrictions
T30LYLicence issued but call never activated
T30SP
2012 - October - no evidence found that this call was ever QRV


Acknowledgements and references

Anthony Quest, G4UZN

ARRL Countries List, February 1947

Club Log Help Desk VR1 and VR3 prefixes - transition to VR8, T2, T3Ø, T31, T32 and T33

Club Log Help Desk VR1-VR3-VR7 calls for the period 1947- circa 1977

Dokufunk

GDXF Supported DXpeditions

Ham Gallery Western Kiribati (Gilbert, Ellice Is.), Oceania T30

Les Nouvelles DX VR1A - Iles Gilbert

Wikipedia Tarawa