Key Telecom Sectors

Not long ago, the telecommunications sector consisted of a club of big national and regional operators. Since the early 2000s, the industry has been swept up in rapid deregulation and innovation. In many countries around the world, government monopolies are now privatized and they face a plethora of new competitors. Traditional markets have been turned upside down, as the growth in mobile services outpaces the fixed line and the Internet starts to replace voice as the staple business. These are the 10 biggest telecommunications companies by 12-month trailing (TTM) revenue. This list is limited to companies that are publicly traded in the U.S. or Canada, either directly or through ADRs. Some companies outside the U.S. report profits semi-annually instead of quarterly, so the 12-month trailing data may be older than it is for companies that report quarterly. The data in this story are from All figures are as of January 12, 2021. AT&T Inc. (T) Revenue (TTM): $172.9 billion Net Income (TTM): $11.1 billion Market Cap: $204.4 billion 1-Year Trailing Total Return: -19.7% Exchange: New York Stock Exchange