I’ve been searching in vain for information about which partner network(s) ID uses in each country. All questions about roaming generate multiple answers concerning how to enable roaming, how much it will cost and what packages are available to control costs, but very little about which networks are going to be used in the destination country.
This matters because in remote or mountainous areas, not all networks that operate in the country are likely to have coverage. I have encountered this in the Austrian Tirol for example. So before going abroad I want to know which partner network I am likely to connect to and look up the coverage map to assure myself that it will work.
Does anyone know where a table of partner networks by country is available, both for ID and for any other operator from whom I might buy a PAYG ESIM?