This list identifies the largest telecommunications companies by total revenue. For a more thorough list, see the By region section.

By total revenue

Note: Numbers of total revenues of most telephone operating companies are sourced from Forbes or MarketScreener. When US$ revenues unavailable from reliable sites, currency conversions for 2019-2022 revenues are based on the closing currency exchange rate on the last day of 2019-2022 (December 31).

By region

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