Hello, I will be leaving for Europe in two weeks. I do not have an international phone plan and will need to purchase a SIM card for my phone to get data, etc. Are there phone providers/SIM card companies that are used in Germany, Austria, Slovakia, Switzerland, France, and Liechtenstein all at once? If possible, I’d only like to have to buy one card. It would be ideal to pre-purchase. Thanks!
You might also check Vodafone Netherlands. They have a pay as you go card that works for all EU countries with no roaming. We have one issued by Vodafone UK but because of Brexit they no longer offer free roaming in Europe so we plan to get a new SIM card from Vodafone NL. The advantage is that you keep the same phone number and just add a package with as much data as you want for a month. I need to research a bit more but you might also want to check into it as it may serve your purpose.