Worldwide Collection of NTv2 files

Download of the NTv2 grid files and origninators information

Here you can find worldwide freely available NTv2 files for direct download. You will also find information about NTv2 files that are not freely available. If a registration is required for the use of an NTv2 file or if the origninator charges a usage fee, the registration address and further information are provided in an info file.

The reference systems of all NTv2 files listed here are fully supported by the Geodetic Development Kit GeoDLL and by the geodetic programs TRANSDATpro, NTv2Poly and NTv2Tools from KilletSoft.

If you want to use the here listed NTv2 files, you must necessarily note the terms and conditions of their originators! All rights and liabilities, resulting from the use of the data, bears solely the user! KilletSoft does not guarantee the accuracy of the data available in the NTv2 files and for the legality of their usage!

Labeling of the entries

The NTv2 files are indicated by colors:

1. The black shown NTv2 files are freely available and are not restricted.
2. The green marked NTv2 files have been provided by the originators only for use with KilletSoft products. Therefore, these NTv2 files are encrypted and they only work with the Geodetic Development Kit GeoDLL, with the program TRANSDATpro and other Software by KilletSoft! These files are special licensed to KilletSoft by their originators.
3. The red marked NTv2 files can be ordered or purchased only directly from their originators. For the registration of the respective NTv2 file with the originator KilletSoft provides the Registration Address of the originator in a downloadable file.
4. The orange marked NTv2 files are available only as testdata at time. Probably these files will be improved until final release.

Each entry consists of three lines:

1. In the first line the country, the name and the Reference Systems of the NTv2 file is explained.
2. In the second line a link to the original web page of the origninator is provided, where mostly the latest version of the NTv2 file can be found.
3. In the third line is a link, from which the NTv2 file can be download direct from the KilletSoft server.

It is recommended to use the original NTv2 files of the originators if possible, because the actuality of the files stored on the KilletSoft server cannot be guaranteed.

NTv2 solutions sorted alphabetically by continents and countries

1.  European continent
2.  North American continent
3.  Central America and Caribbean
4.  South American continent
5.  Asian continent
6.  Near East and Middle East
7.  African Kontinent
8.  Australian continent
9.  Polynesia, Indonesia, Mikronesia

European continent  Go to Continent Selection

1.  Austria
2.  Belgium
3.  France
4.  Germany
5.  Great Britain
6.  Hungary
7.  Iceland
8.  Ireland
9.  Italy
10.  Netherlands
11.  Portugal
12.  Romania
13.  Spain
14.  Switzerland

1. Austria  Go to Country Selection
2. Austria: AT_GIS_GRID_2014.gsb, MGI <==> ETRS89
   Originator:  BEV - Bundesamt für Eich- und Vermessungswesen.
   KilletSoft:  Download AT_GIS_GRID_2014
3. Austria: AT_GIS_GRID_2021.gsb, MGI <==> ETRS89
   Originator:  BEV - Bundesamt für Eich- und Vermessungswesen.
   KilletSoft:  Download AT_GIS_GRID_2021

1. Belgium  Go to Country Selection
2. Belgium: bd72lb72_etrs89lb08.gsb, BD72 <==> ETRS89
   Originator:  NGI - Nationaal Geografisch Instituut.
   KilletSoft:  Download bd72lb72_etrs89lb08

1. France  Go to Country Selection
2. France: NTF_R93.gsb, NTF <==> RGF93
   Originator:  IGN (Institut Géographique National): Projet "Lambert 93".
   KilletSoft:  Download NTF_R93
3. France: FRANCE.gsb, NTF <==> RGF93
   Originator:  Paul Kelly: Creation of NTv2 Grid File for France.
   KilletSoft:  Download FRANCE

1. Germany  Go to Country Selection
2. Germany: BeTA2007.gsb, DHDN90 <==> ETRS89
   Originator:  Bundesamt für Kartographie und Geodäsie.
   KilletSoft:  Download BeTA2007
3. Germany (Baden-Württemberg): BWTA2017.gsb, DHDN90 <==> ETRS89
   Originator:  Landesamt für Geoinformation Baden-Württemberg.
   KilletSoft:  Hint about the Download Address
4. Germany (Bavaria): BY_KanU.gsb (2019), DHDN90 <==> ETRS89
   Originator:  Bayerische Vermessungsverwaltung.
   KilletSoft:  Hint about the Download Address
5. Germany (Bavaria): NTv2-Ba.gsb (2011), DHDN90 <==> ETRS89
   Originator:  Bayerische Vermessungsverwaltung.
   KilletSoft:  Download Registration Address
6. Germany (Berlin): Ntv2berlin.gsb, DHDN90 <==> ETRS89
   Originator:  Senatsverwaltung für Stadtentwicklung, Bauen und Wohnen.
   KilletSoft:  Download Ntv2berlin (© Senatsverwaltung Berlin)
7. Germany (Brandenburg): NTv2-BB.gsb (old NTv2 file), S42/83 <==> ETRS89
   Originator:  LGB (Landesvermessung und Geobasisinformation Brandenburg).
   KilletSoft:  Hint about the Download Address
8. Germany (Brandenburg): bb3040h.gsb (new NTv2 file), S42/83 <==> ETRS89
   Originator:  LGB (Landesvermessung und Geobasisinformation Brandenburg).
   KilletSoft:  Download bb3040h (© LGB)
9. Germany (Bremen): HBTa2010.gsb, DHDN90 <==> ETRS89
   Originator:  GeoInformation Bremen.
   KilletSoft:  Download HBTa2010 (© GeoInformation Bremen)
10. Germany (Hamburg): Beta_FHH_NW.gsb, DHDN90 <==> ETRS89
    Germany (Hamburg): NTv2-HH.gsb, DHDN90 <==> ETRS89
    Germany (Hamburg): NTv2-Neuwerk.gsb, DHDN90 <==> ETRS89
    Originator:  Landesbetrieb Geoinformation und Vermessung Hamburg.
    KilletSoft:  Download NTv2 Hamburg (© GeoInformation Hamburg)
11. Germany (Hesse): HeTA2010.gsb, DHDN90 <==> ETRS89
    Originator:  HVBG - Hessische Verwaltung für Bodenmanagement und Geoinformation.
    KilletSoft:  Download HeTA2010 (© HVBG)
12. Germany (Mecklenburg-Western Pomerania): MVTR2010.gsb, RD83 <==> ETRS89
    Germany (Mecklenburg-Western Pomerania): MVTRS4283.gsb, S42/83 <==> ETRS89
    Originator:  DVZ Datenverwaltumszentrum Mecklenburg-Vorpommern GmbH.
    KilletSoft:  Download Ntv2 Mecklenburg-Western Pomerania (© DVZ MV GmbH)
13. Germany (North Rhine-Westphalia): NW_GC1501.gsb, DHDN <==> ETRS89
    KilletSoft:  Download NW_GC1501
14. Germany (Saarland): SeTa2009.gsb, DHDN90 <==> ETRS89
    Originator:  LVGL - Landesamt für Vermessung und Geoinformation des Saarlandes.
    KilletSoft:  Download SeTa2009
15. Germany (Saarland): SeTa2016.gsb, DHDN90 <==> ETRS89
    Originator:  LVGL - Landesamt für Vermessung und Geoinformation des Saarlandes.
    KilletSoft:  Download SeTa2016
16. Germany (Saxony): SaeTA2010.gsb (5cm), RD83 <==> ETRS89
    Originator:  GeoSN - Landesvermessung Sachsen.
    KilletSoft:  Download SaeTA2010 (© GeoSN)
17. Germany (Saxony): NTv2_SN.gsb (3cm), RD83 <==> ETRS89
    Originator:  GeoSN - Landesvermessung Sachsen.
    KilletSoft:  Download Ntv2_SN (© GeoSN)
18. Germany (Saxony-Anhalt): NTv2LSBB_LSA.gsb, S42/83 <==> ETRS89
    Originator:  Landesstraßenbaubehörde Sachsen-Anhalt (LSBB).
    KilletSoft:  Download NTv2LSBB_LSA (© LSBB)
19. Germany (Schleswig-Holstein): SH2016A.gsb, DHDN <==> ETRS89
    KilletSoft:  Download SH2016A
20. Germany (Thuringia): NTv2GridTh.gsb, PD83 <==> ETRS89
    Originator:  TLVermGEO - Landesamt für Vermessung und Geoinformation - Thüringen.
    KilletSoft:  Download NTv2GridTh (© TLVermGEO)

1. Great Britain  Go to Country Selection
2. Great Britain: OSTN02_N.gsb, OSGB36 <==> ETRS89
   Originator:  Ordnance Survey: OSTN02 - NTv2 format.
   KilletSoft:  Download OSTN02
3. Great Britain: OSTN15_NTv2_ETRStoOSGB.gsb, OSGB36 <==> ETRS89
   Great Britain: OSTN15_NTv2_OSGBtoETRS.gsb, ETRS89 <==> OSGB36
   Originator:  Ordnance Survey: OSTN15 and OSGM15 for developers.
   KilletSoft:  Download OSTN15
4. Great Britain: ENGLAND.gsb, OSGB36 <==> ETRS89
   Originator:  Paul Kelly: OSTN02 in NTv2 format for OSGB36<-->ETRS89.
   KilletSoft:  Download ENGLAND
5. Great Britain: SCOTLAND.gsb, OSGB36 <==> ETRS89
   Originator:  Paul Kelly: OSTN02 in NTv2 format for OSGB36<-->ETRS89.
   KilletSoft:  Download SCOTLAND

1. Hungary  Go to Country Selection
2. Hungary: ETRS2EOV.gsb, EOV HD72 <==> ETRS89
   Originator:  Budapesti Müszaki es Gazdasagtudomanyi Egyetem.
   The original file etrs2eov.gsb may contain a bug, better to use the file etrs2eov_kor.gsb, corrected by KilletSoft.
   KilletSoft:  Download ETRS2EOV

1. Iceland  Go to Country Selection
2. Iceland: ISN93_ISN2016.gsb, ISN93 <==> ISN2016
   Originator:  Landmælingar Íslands.
   KilletSoft:  Download ISN93_ISN2016
3. Iceland: ISN2004_ISN2016.gsb, ISN2004 <==> ISN2016
   Originator:  Landmælingar Íslands.
   KilletSoft:  Download ISN2004_ISN2016

1. Ireland  Go to Country Selection
2. Ireland: TM75_ETRS89.gsb, TM75 <==> ETRS89
   Originator:  Ordnance Survey Ireland (OSI).
   KilletSoft:  Download TM75_ETRS89

1. Italy  Go to Country Selection
2. Italy: NadED50.gsb, ED50 <==> WGS84
   Italy: NadRoma40.gsb, Roma40 <==> WGS84
   Italy: NadRoma40ED50.gsb, Roma40 <==> ED50
   Originator:  GLOBO - Grigliati NTv2 per l'Italia".
   KilletSoft:  Download NadRoma40Ed50
3. Italy (Emilia Romagna): RER_AD400_MM_ED50_V1A.gsb, Roma40 <==> ED50
   Italy (Emilia Romagna): RER_AD400_MM_ETRS89_V1A.gsb, Roma40 <==> ETRS89
   Italy (Emilia Romagna): RER_ED50_MM_ETRS89_GPS7_K2.gsb, ED50 <==> ETRS89
   Italy (Emilia Romagna): RER_MM_ED50_GPS7_K2.gsb, Roma40 <==> ED50
   Italy (Emilia Romagna): RER_MM_ETRS89_GPS7_K2.gsb, Roma40 <==> ETRS89
   Originator:  ER Geoportale - Regione Emilia-Romagna".
   KilletSoft:  Download Rer_V1A_K2

1. Netherlands  Go to Country Selection
2. Netherlands: RDTRANS2018.gsb, RD/NAP <==> ETRS89
   Originator:  Netherlands - Kadaster and Rijkswaterstaat (DID and RDNAP).
   KilletSoft:  Download RDTRANS2018
3. Netherlands: RDTRANS2008.gsb, RD/NAP <==> ETRS89
   Originator:  Netherlands - Kadaster and Rijkswaterstaat (DID and RDNAP).
   KilletSoft:  Download RDTRANS2008

1. Portugal  Go to Country Selection
2. Portugal: D73_ETRS89_geo.gsb, D73 <==> ETRS89
   Originator:  Direção-Geral do Território.
   KilletSoft:  Download D73_ETRS89_geo
3. Portugal: DLX_ETRS89_geo.gsb, DLX <==> ETRS89
   Originator:  Direção-Geral do Território.
   KilletSoft:  Download DLX_ETRS89_geo
4. Portugal: PT73_E89.gsb, D73 <==> ETRS89
   Originator:  A vida de um Informático.
   KilletSoft:  Download PT73_E89
5. Portugal: PTLX_E89.gsb, DLX <==> ETRS89
   Originator:  A vida de um Informático.
   KilletSoft:  Download PTLX_E89
6. Portugal: PTBL_E89.gsb, B-DLX <==> ETRS89
   Originator:  A vida de um Informático.
   KilletSoft:  Download PTBL_E89
7. Portugal: PTED_E89.gsb, ED50 <==> ETRS89
   Originator:  A vida de um Informático.
   KilletSoft:  Download PTED_E89

1. Romania  Go to Country Selection
2. Romania: Stereo70_ETRS89.gsb, Stereo70 <==> ETRS89
   Originator:  Centrul National de Cartografie Romania.
   KilletSoft:  Download Stereo70_ETRS89

1. Spain  Go to Country Selection
2. Spain (Peninsula 2009): PENR2009.gsb (=R2009V2.gsb), ED50 <==> ETRS89
   Originator:  Instituto Geografico Nacional - Ministerio de Fomento.
   KilletSoft:  Download PENR2009
3. Spain (Baleares 2009): BALR2009.gsb, ED50 <==> ETRS89
   Originator:  Instituto Geografico Nacional - Ministerio de Fomento.
   KilletSoft:  Download BALR2009
4. Spain (Pen + Bal 2003): SPED2ET.gsb, ED50 <==> ETRS89
   Originator:  Instituto Geografico Nacional - Ministerio de Fomento.
   KilletSoft:  Download SPED2ET

1. Switzerland  Go to Country Selection
2. Switzerland: CHENYX06etrs.gsb, CH1903 <==> ETRS89
   Originator:  Bundesamt für Landestopographie swisstopo: CHenyx06etrs.
   KilletSoft:  Download CHENYX06etrs
3. Switzerland: CHENYX06a.gsb, CH1903 <==> CH1903+
   Originator:  Bundesamt für Landestopographie swisstopo: CHenyx06a.
   KilletSoft:  Download CHENYX06a

North American continent  Go to Continent Selection

1.  United States
2.  Canada

1. United States  Go to Country Selection
2. United States (HARN/HPGN): xxhpgn.gsb, 49 files, NAD83(HARN) <==> NAD83
   Originator:  OSGeo Download Server: hpgn_ntv2.zip.
   KilletSoft:  Download HARN_HPGN_NTV2

1. Canada  Go to Country Selection
2. Canada: NTV2_0.gsb, NAD27 <==> NAD83
   Originator:  Natural Resources Canada: Canadian Spatial Reference System - NTv2.
   KilletSoft:  Download NTV2_0
3. Canada (Alberta): ABCSRSv4.gsb, NAD83 <==> NAD83(CSRS)
   Originator:  Alberta Environment and Sustainable Resource Development.
   KilletSoft:  Download Registration Address
4. Canada (Alberta): ABCSRSv7.gsb, NAD83 <==> NAD83(CSRS)
   Originator:  Alberta Government - Environment - Open Government.
   KilletSoft:  Download ABCSRSv7
5. Kanada (British Columbia): BC_27_98.gsb, NAD27 <==> NAD83(CSRS98)
   Originator:  GeoBC - Reference Systems and Survey Monuments.
   KilletSoft:  Download BC_27_98
6. Kanada (British Columbia): CRD27_00.gsb, NAD27 <==> NAD83(CRD2000)
   Originator:  GeoBC - Reference Systems and Survey Monuments.
   KilletSoft:  Download CRD27_00
7. Kanada (British Columbia Vanc. Isl.): NVI27_05.gsb, NAD27 <==> NAD83(NVI2005)
   Originator:  GeoBC - Reference Systems and Survey Monuments.
   KilletSoft:  Download NVI27_05
8. Kanada (British Columbia): BC_27_05.gsb, NAD27 <==> NAD83(BC2005)
   Originator:  GeoBC - Reference Systems and Survey Monuments.
   KilletSoft:  Download BC_27_05
9. Kanada (British Columbia): BC_93_98.gsb, NAD83(NMIP93) <==> NAD83(CSRS98)
   Originator:  GeoBC - Reference Systems and Survey Monuments.
   KilletSoft:  Download BC_93_98
10. Kanada (British Columbia): CRD98_00.gsb, NAD83(CSRS98) <==> NAD83(CRD2000)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download CRD98_00
11. Kanada (British Columbia): CRD93_00.gsb, NAD83(NMIP93) <==> NAD83(CRD2000)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download CRD93_00
12. Kanada (British Columbia): BC_98_05.gsb, NAD83(CSRS98) <==> NAD83(BC2005)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download BC_98_05
13. Kanada (British Columbia): BC_93_05.gsb, NAD83(NMIP93) <==> NAD83(BC2005)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download BC_93_05
14. Kanada (British Columbia Vanc. Isl.): NVI98_05.gsb, NAD83(CSRS98) <==> NAD83(NVI2005)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download NVI98_05
15. Kanada (British Columbia Vanc. Isl.): NVI93_05.gsb, NAD83(NMIP93) <==> NAD83(NVI2005)
    Originator:  GeoBC - Reference Systems and Survey Monuments.
    KilletSoft:  Download NVI93_05
16. Canada (New Brunswick): NB2783V2.gsb, NAD27 <==> NAD83(CSRS)
    Originator:  Service New Brunswick - GeoNB.
    KilletSoft:  Download NB2783V2
17. Canada (New Brunswick): NB7783V2.gsb, ATS77 <==> NAD83(CSRS)
    Originator:  Service New Brunswick - GeoNB.
    KilletSoft:  Download NB7783V2
18. Kanada (Newfoundland / Labrador): NLCSRSV4A.gsb, NAD83 <==> NAD83(CSRS)
    Originator:  Department of Fisheries, Forestry and Agriculture.
    KilletSoft:  Download Registration Address
19. Kanada (Nova Scotia): NS778301.gsb, ATS77 <==> NAD83(CSRS97 ±15cm)
    Originator:  Geographical Information Sciences Centre.
    KilletSoft:  Download NS778301
20. Kanada (Nova Scotia): NS778302.gsb, ATS77 <==> NAD83(CSRS2010 ±5cm)
    Originator:  Geographical Information Sciences Centre.
    KilletSoft:  Download NS778302
21. Kanada (Nova Scotia): GS7783.gsb, ATS77 <==> NAD83(±50cm)
    Originator:  Geographical Information Sciences Centre.
    KilletSoft:  Download GS7783
22. Canada (Ontario): MAY76V20.gsb, NAD27(1976) <==> NAD83(ORIG)
    Originator:  Ontario Ministry of Natural Resources.
    KilletSoft:  Download Registration Address
23. Canada (Ontario): ON27CSV1.gsb, NAD27(1974) <==> NAD83(CSRS)
    Originator:  Ontario Ministry of Natural Resources.
    KilletSoft:  Download Registration Address
24. Canada (Ontario): ON27CSV1.gsb, NAD27(1976) <==> NAD83(CSRS)
    Originator:  Ontario Ministry of Natural Resources.
    KilletSoft:  Download Registration Address
25. Canada (Ontario): ON83CSV1.gsb, NAD83(ORIG) <==> NAD83(CSRS)
    Originator:  Ontario Ministry of Natural Resources.
    KilletSoft:  Download Registration Address
26. Canada (Prince Edward Island): PE7783V2.gsb, ATS77 <==> NAD83(CSRS98)
    Originator:  PEI Department of Transportation and Infrastructure Renewal.
    KilletSoft:  Download PE7783V2
27. Canada (Quebec): CQ77NA83.gsb (Esri CGQ77-83), NAD27(CGQ77) <==> NAD83
    Originator:  Géoboutique Québec, Ministère des Ressources naturelles.
    KilletSoft:  Download CQ77NA83
28. Canada (Quebec): CQ77CSRS.gsb (Esri CGQ77-98), NAD27(CGQ77) <==> NAD83(CSRS)
    Originator:  Géoboutique Québec, Ministère des Ressources naturelles.
    KilletSoft:  Download CQ77CSRS
29. Canada (Quebec): NA27NA83.gsb (Esri QUE27-83), NAD27 <==> NAD83
    Originator:  Géoboutique Québec, Ministère des Ressources naturelles.
    KilletSoft:  Download NA27NA83
30. Canada (Quebec): NA27CSRS.gsb (Esri QUE27-98), NAD27 <==> NAD83(CSRS)
    Originator:  Géoboutique Québec, Ministère des Ressources naturelles.
    KilletSoft:  Download NA27CSRS
31. Canada (Quebec): NA83CSRS.gsb (Esri NAS83-98), NAD83 <==> NAD83(CSRS)
    Originator:  Géoboutique Québec, Ministère des Ressources naturelles.
    KilletSoft:  Download NA83CSRS
32. Canada (Saskatchewan): SK27-83.gsb, NAD27 <==> NAD83
    Originator:  GeoSask - Saskatchewans Service for Maps and Land Information.
    KilletSoft:  Download SK27-83
33. Canada (Saskatchewan): SK27-98.gsb, NAD27 <==> NAD83(CSRS98)
    Originator:  GeoSask - Saskatchewans Service for Maps and Land Information.
    KilletSoft:  Download SK27-98
34. Canada (Saskatchewan): SK83-98.gsb, NAD83 <==> NAD83(CSRS98)
    Originator:  GeoSask - Saskatchewans Service for Maps and Land Information.
    KilletSoft:  Download SK83-98

Central America and Caribbean  Go to Continent Selection

1. No NTv2 files yet

South American continent  Go to Continent Selection

1.  Brazil
2.  Venezuela

1. Brazil  Go to Country Selection
2. Brazil: CA61_003.gsb, CorregoAlegre1961 <==> SIRGAS2000
   Originator:  IBGE - Instituto Brasileiro de Geografia e Estatística.
   KilletSoft:  Download CA61_003
3. Brazil: CA7072_003.gsb, CorregoAlegre1970/72 <==> SIRGAS2000
   Originator:  IBGE - Instituto Brasileiro de Geografia e Estatística.
   KilletSoft:  Download CA7072_003
4. Brazil: SAD69_003.gsb, SAD69 <==> SIRGAS2000
   Originator:  IBGE - Instituto Brasileiro de Geografia e Estatística.
   KilletSoft:  Download SAD69_003
5. Brazil: SAD96_003.gsb, SAD69(96) <==> SIRGAS2000
   Originator:  IBGE - Instituto Brasileiro de Geografia e Estatística.
   KilletSoft:  Download SAD96_003

1. Venezuela  Go to Country Selection
2. Venezuela: CANOA_WGS84_mb.gsb, La Canoa <==> WGS84
   Originator:  eye4software - Juan Lucas Domínguez Rubio.
   KilletSoft:  Download CANOA_WGS84_mb

Asian continent  Go to Continent Selection

1.  Japan

1. Japan  Go to Country Selection
2. Japan: tky2jgd.gsb, JGD2000 <==> JGD2011
   Originator:  GitHub / tohka JapanGridShift.
   KilletSoft:  Download tky2jgd
3. Japan: touhokutaiheiyouoki2011.gsb, Tokyo <==> JGD2000
   Originator:  GitHub / tohka JapanGridShift.
   KilletSoft:  Download touhokutaiheiyouoki2011

Near East and Middle East  Go to Continent Selection

1.  Lebanon

1. Lebanon  Go to Country Selection
2. Lebanon: LB_DeirEzZor.gsb, WGS84 <==> DeirEzZor
   Urheber: not specified
   KilletSoft:  Download LB_DeirEzZor

African continent  Go to Continent Selection

1. No NTv2 files yet

Australian continent  Go to Continent Selection

1.  Australia
2.  New Zealand

1. Australia  Go to Country Selection
2. Australia: GDA94_GDA2020_conformal.gsb, GDA2020 <==> GDA94
   Originator:  ICSM GitHub transformation grid repository.
   KilletSoft:  Download GDA94_GDA2020_C
3. Australia: GDA94_GDA2020_conformal_and_distortion.gsb, GDA2020 <==> GDA94
   Originator:  ICSM GitHub transformation grid repository.
   KilletSoft:  Download GDA94_GDA2020_CD
4. Australia: National_84_dd_mm_yy.gsb (A84_NAT.gsb), AGD84 <==> GDA94
   Originator:  ICSM GitHub transformation grid repository.
   KilletSoft:  Download A84_NAT
5. Australia: A66_National_dd_mm_yy.gsb (A66_NAT.gsb), AGD66 <==> GDA94
   Originator:  ICSM GitHub transformation grid repository.
   KilletSoft:  Download A66_NAT

1. New Zealand  Go to Country Selection
2. New Zealand: NZGD2KGR.gsb, NZGD49 <==> NZGD2000
   Originator:  Land Information New Zealand: Download Geodetic Software.
   KilletSoft:  Download NZGD2KGR

Polynesia, Indonesia, Mikronesia  Go to Countinent Selection

1. No NTv2 files yet