Is there a service for mass definition of the region by phone number?
There is a base of the Russian offer its customers more than 1000 numbers in excel. Instructed to do the filtering in the region. How can I do that?
I see two options: Find the number ranges for each region, and then programmatically compare, or run it through some sort of tools/Converter. 100% correct not to expect, but the more, the better.