Sanırım CallBlocker tarzı bir uygulama ile istediğiniz tefon prefix blokunu engelleyebiliyorsunuz.

Bir siteden alıntı yaptım.

https://play.google.com/store/apps/d...erycallcontrol

Launch the app → Agree for their T&C→ Blocked List → tap → Add to Block list → Wildcard→ type 1408* and name it something→ tap OK→ tap the new blocked entry once to see more options→ change How To Block to Disconnect.
This app's call blocker should be enabled by default, otherwise go in its menu to enable it.
Note that I'm not aware of your country code, neither I know whether Android shows country code before 1408xxx number when you get the incoming call. You may have to add country code or similar, like +1, +51, +95, etc., before 1408*.


Kaynak : https://android.stackexchange.com/qu...fix-or-pattern