I am looking for mobile internet subscribers, internet subscribers and smartphones related data and billing data. Further to this, data related to market shares of telecom companies and MVNO would also be very useful to get. I am interested in developing markets in Asia and Africa.
Critical Markets
You can get such data by visiting the national body/ministry of your countries of interest. I have listed almost all country sources. You can visit it and get the data directly from there. Critical Markets can also help you in providing such data with forecasts.