[FinnishPenguin]

I have a list of thousands of numbers that I want to block. Does anyone know a free call blocker app to which I could import this list? All the apps I've found only allow adding numbers one by one.

[Paddy Landau]

Thousands? Wow. I'm curious to know why!

Does the app have to be free, or will a low-cost app do?

The reason why I ask is that if you were to purchase an app (which generally costs no more than $3, hardly a high cost), the developer may be willing to help you with this.

However, I presume that you'd have to test the proposed app on your phone and, if it works, contact the developer before purchasing the app.

I use Call Blocker Gold, which has a massive list of community-shared numbers, indicating that it must have the ability to handle this sort of thing. (You can currently get the app free read its Description.) It also allows wild-cards, which would probably be useful to you. Try it out and let us know what the developer says.