Below are details on the sources on which the individual country datasets are partially based:

Argentina: (I) Instituto Geográfico Nacional de la República Argentina http://www.ign.gob.ar
 (II)Secretaría de Gobierno de Energía http://datos.minem.gob.ar
Australia: Australian Bureau of Statistics, http://www.abs.gov.au, Incorporates or developed using G-NAF ©PSMA Australia Limited licensed by   the Commonwealth of Australia under the Open Geo-coded National Address File (G-NAF) End User Licence Agreement.
Austria: Bundesanstalt Statistik Österreich, http://data.statistik.gv.at
Brazil: Portal Brasileiro de Dados Abertos, dados.gov.br
Belgium: Statistics Belgium, https://statbel.fgov.be
Canada: Statistics Canada, https:// statcan.gc.ca
Chad: OCHA Chad, https://data.humdata.org
Colombia: National Administrative Department of Statistics: www.dane.gov.co
Czech Republic: (I)Český statistický úřad, https://www.czso.cz
(II) Státní správa zeměměřictví a katastru, https://www.cuzk.cz
Denmark: Danish Geodata Agency, DAGI - Danish Administrative and Geographical Boundaries, Matrikelkortet / The Cadastral Map and Kort10
(vector), all April 2015, http://download.kortforsyningen.dk
Democratic Republic of the Congo: Référentiel Géographique Commun, http://www.rgc.cd
Faroe Islands: The Environment Agency, Faroe Islands, http://www.us.fo
Finland: The National Land Survey of Finland, http://www.maanmittauslaitos.fi
France: IGN France, https://www.data.gouv.fr
French Guiana: Institut national de l’information géographique et forestière (IGN), http://professionnels.ign.fr
Estonia: Republic of Estonia Land Board, July 2014, http://www.maaamet.ee
Ecuador: National Institute of Statistics and Censuses INEC, http://www.ecuadorencifras.gob.ec
Germany: (I) Bayerische Vermessungsverwaltung, http://www.geodaten.bayern.de
(II) Geoportal Baden-Württemberg, http://www.geoportal-bw.de
(III) Senatsverwaltung für Stadtentwicklung und Umwelt Berlin, http://www.stadtentwicklung.berlin.de
(IV) Geoportal Rheinland Pfalz, http://www.geoportal.rlp.de
(V) Open.NRW – Das Open Government Portal für das Land Nordrhein-Westfalen, https://open.nrw
Germany city districts:
offenedaten.aachen.de
CC-BY 3.0 daten.berlin.de
© Stadt Bielefeld, Amt für Geoinformation und Kataster (CC BY 4.0)
www.bochum.de
Stadt Braunschweig - Open GeoData, 2019, Lizenz: dl-de/by-2-0
portal-chemnitz.opendata.arcgis.com
geoweb1.digistadtdo.de
Kartendaten © www.auf-Karte.de CC BY 4.0
open.nrw/dataset/stadtteilgrenzen-duesseldorf-d
Kartendaten © www.auf-Karte.de CC BY 4.0
www.offenedaten.frankfurt.de
FR.ITZ, Stadt Freiburg i.Br., Amt für Bürgerservice und Informationsverarbeitung, fritz.freiburg.de
open.nrw/dataset/verwaltungsgrenzen-der-stadt-gelsenkirchen-wms-wfs-ge
www.transparenz.hamburg.de
www.hamm.de
www.hannover.de
www.herne.de
opendata.jena.de
www.offenedaten-koeln.de
www.krefeld.de
Stadt Leipzig, Amt für Statistik und Wahlen 2019, www.leipzig.de
www.offenesdatenportal.de
www.moenchengladbach.de
geo.muelheim-ruhr.de
www.opengov-muenchen.de
www.stadt-muenster.de
© Landeshauptstadt Stuttgart, Stadtmessungsamt, www.stuttgart.de
© Stadt Trier 2019  / dl-de/by2-0, www.trier.de, Daten bearbeitet
http://daten.ulm.de
www.offenedaten-wuppertal.de
Germany localities:
© GeoBasis-DE / LVermGeo LSA , https://www.geodatenportal.sachsen-anhalt.de
Geodaten Sachsen, http://geodownload.sachsen.de
© GDI-Th, https://www.geoportal-th.de
GeoBasis-DE/MV; dl-de/by-2-0, https://www.laiv-mv.de
© GeoBasis-DE / LVermGeoRP 2017, dl-de/by-2-0© GeoBasis-DE / LVermGeoRP 2017, dl-de/by-2-0, www.lvermgeo.rlp.de, http://geo5.service24.rlp.de
Land NRW (2019), https://www.opengeodata.nrw.de
Auszug aus den Geobasisdaten des Landesamtes für Geoinformation und Landesvermessung Niedersachsen, © 2019, https://www.geobasisdaten.niedersachsen.de
GeoBasis-DE / BKG 2019, http://www.geodatenzentrum.de
© GeoBasis-DE/LGB, dl-de/by-2-0, (Daten geändert)
Greenland: Danish Geodata Agency, DAGI - Danish Administrative and Geographical Boundaries, Matrikelkortet / The Cadastral Map and
Kort10 (vector), all April 2015, http://download.kortforsyningen.dk/
Guadeloupe: Institut national de l’information géographique et forestière (IGN), http://professionnels.ign.fr
Guatemala: Open Energy Information, http://en.openei.org
Guinea: International Organization for Migration, https://data.humdata.org
Haiti: U.S. Census Bureau, https://www.census.gov
Honduras: Open Energy Information, http://en.openei.org
Iceland: National Land Survey of Iceland, http://www.lmi.isIndia: MapmyIndia, http://www.mapmyindia.com
Ireland: (I) Ordnance Survey Ireland (OSI), http://www.osi.ie
(II) DATA.GOV.IE, http://data.gov.ie
Italy: Istituto Nazionale di Statistica. www.istat.it
Japan: Statistics of Japan. https://www.e-stat.go.jp
Libya: OCHA Lybia, https://data.humdata.org
Martinique: Institut national de l’information géographique et forestière (IGN), http://professionnels.ign.fr
Mexico: "Códigos Postales, coordenadas y colonias" published by Correos de Mexico, https://datos.gob.mx
New Zealand: (I) This work is based on/includes Stats NZ’s data which are licensed by Stats NZ for reuse under the Creative Commons                                                                                                                         Attribution 4.0 International licence.
(II) LINZ - Land Information New Zealand data, https://data.linz.govt.nz
Netherlands: NGR Nationaal Georegister, http://nationaalgeoregister.nl
Nigeria: The Humanitarian Data Exchange, https://data.humdata.org
Norway: Kartverket, www.kartverket.no
Poland: Centralnego Ośrodka Dokumentacji Geodezyjnej Kartograficznej, http://www.codgik.gov.pl
Philippines: Philippines Statistics Authority (PSA)
Portugal: (I) Instituto Geográfico Português, http://www.igeo.pt
(II) Instituto Nacional de Estadística, www.ine.pt
Réunion: IGN France, https://www.data.gouv.fr
Romania: National Agency for Cadastre and Land Registration, http://data.gov.ro
Rwanda: NISR Geodata Portal, https://data.humdata.org
Slovakia: Ústredný portál verejných služieb ľuďom, http://data.gov.sk
Slovenia: Statistical Office of the Republic of Slovenia, http://www.stat.si
Sierra Leone: Code for Sierra Leone, https://africaopendata.org/
South African: (I) Municipal Demarcation Board, http://www.demarcation.org.za
(II) National Geospatial Information, http://www.ngi.gov.za
South Korea: DATA.GO.KR, https://data.go.kr
South Sudan: The Humanitarian Data Exchange, https://data.humdata.org
Spain: Instituto Nacional de Estadística, http://www.ine.es
Switzerland: (I)Swiss federal authorities (Federal Office of Topography swisstopo, http://www.swisstopo.admin.ch/and Federal Directorate of
(II)Cadstral Suyrveying, http://www.cadastre.ch)
Taiwan: National Land Surveying and Mapping Center, https://data.gov.tw
Tanzania: Small Hydro GIS Atlas, https://energydata.info
United Kingdom: Ordnance Survey, http://www.ordnancesurvey.co.uk
Zambia: U.S. Census Bureau, https://www.census.gov

Explanation of terms 

Object type*:
admin (level 0-7)
This layer depicts the administrative and political boundaries of the country in question. Level “0” corresponds to the country as a whole, with an increasing level of detail for each successive level (e.g., 2, 3 and so on).

postal (1-7 digits)
This layer depicts the postcode divisions of the country in question. “1” refers to one-digit postcodes, “2” to two-digit postcodes, and so on. The higher the number, the more detailed the depiction of the postcodes.

TT
This layer is based on TomTom cartography.

Off. code**:
This layer contains labels featuring official regional codes - for example, the official designators of postcodes used by the national postal organization.

Nat. lang.***:
In addition to ASCII-based labels, this layer contains labels in the language (and associated special characters) of the country in question. For some countries local labels are not properly shown in MapInfo, unless the appropriate font is installed or the system's regional settings have been changed to the country in question.