Is there a service for mass determination of the region by phone number?

Question

Data request

There is a database of Russian numbers of its customers, over 1000 numbers in excel format. Instructed to filter by region. How can I do that?
I see two options: Find the ranges of numbers for each region and then programmatically match, or run through some kind of service / converter. I don't claim to be 100% correct, but the more accurate the better.

Answer 1

https://xinit.ru/group_def/
Save your excel as a text file and go. I don’t know what is the limit on the number of rooms, I have never tried a lot. But if so, please share.

Answer 2

https://www.kody.su/

Answer 3

I recommend using the official numbering plan https://rossvyaz.ru/deyatelnost/resurs-numeracii/v...