List of telephone operating companies

This list is incomplete; you can help by adding missing items. (September 2021)

This list identifies the fixed line operators and the mobile operators for the top 200 most populous countries in the world.

The list of countries and their populations is from List of countries by population. The CIA World Factbook is cited as the standard reference for the number of main lines for each of the listed countries.^[1]

List of countries by number of broadband Internet subscriptions is cited as the standard reference for the number of fixed broadband subscribers for each of the listed countries. The country naming convention follows the ISO 3166-1 standard as published by the International Organization for Standardization (ISO).