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Deutsche Telekom merged its T-Mobile USA unit with prepaid specialist MetroPCS in 2013, and that firm merged with Sprint in 2020, creating the second-largest wireless carrier in the US. T-Mobile now serves about 87 million postpaid and 26 million prepaid phone customers, equal to around 30% of the US retail wireless market. The firm entered the fixed-wireless broadband market aggressively in 2021 and now serves around 9 million residential and business customers with its wireless network. It also serves more than 1 million fiber broadband customers through joint ventures with fiber network owners. T-Mobile owns a stake in these firms, which provide wholesale access to their networks. In addition, T-Mobile provides wholesale services to wireless resellers.

Cisco Systems is the largest provider of networking equipment in the world and one of the largest software companies in the world. Its largest businesses are selling networking hardware and software (where it has leading market shares) and cybersecurity software such as firewalls. It also has collaboration products, like its Webex suite, and observability tools. It primarily outsources its manufacturing to third parties and has a large sales and marketing staff-25,000 strong across 90 countries. Overall, Cisco employs 80,000 people and sells its products globally.