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I'm searching for a data set that contains the country information (Name, ISO 2 char, ISO 3 char, ISO number, ...) and other data. Also I'm looking for all states for each country including their abbreviation.
I'm willing to pay for that data if it is verified, actual and gets updated from time to time. I've already tried searching but couldn't find anything reliable.
Please note that I don't need geographical information directly but just a table of the data above.
There is a good data set from Natural Earth that contains countries and their admin units. As far as I remember abbreviations and ISO codes are also included. The data is free and more or less up to date. Have a look:
http://www.naturalearthdata.com/downloads/10m-cultural-vectors/10m-admin-1-states-provinces/
Maybe this post is helpful too:
You can also use the Global Administrative boundaries, it provides different levels of aggregation. However, the last update was in January 2012. A well done list including other free GIS datasets is available on RT Wilson's blog.
The global insight dataset is also very comprehensive and regularly updated, but it is not free. It includes political boundaries (with ratified boundaries) as well as county/provinces.
I am using this and works great !! https://www.universal-tutorial.com/rest-apis/free-rest-api-for-country-state-city
