Telecommunications stocks have a longer history than most people realize. For example, AT&T (T) can trace its roots back to the founding of Bell Telephone Company in 1877.
The sector has obviously changed a lot since 1877, and with new trends such as mobile phones, the Internet, the emergence of cable TV and other developments.
SK Telecom is the largest wireless telecom operator in Korea by revenue and number of subscribers. It was founded in 1984 as Korea Mobile Telecommunications and became SK Telecom in 1997.
Telephone & Data Systems is a telecommunications company that provides customers with cellular and landline services, wireless products, cable, broadband,and voice services across 24 U.S. states.