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Telephone and Data Systems, Inc. is a Chicago-based telecommunications service company providing wireless, local- and long-distance telephone, broadband and video services to approximately 7 million customers in 36 states through its business units TDS Telecom and U.S. Cellular. The company began as a rural phone company in Wisconsin in 1969. In 1983 it founded U.S. Cellular as a subsidiary.
Colt provides high bandwidth services for enterprises and wholesale customers in Europe, Asia and North America`s largest business hubs. Colt enables the digital transformation of businesses through its intelligent, purpose-built, cloud-integrated network, known as the Colt IQ Network. It connects over 700 data centres around the globe, with over 24,500 on-net buildings and growing. Colt is also recognised as an innovator and pioneer in software defined networks (SDN) and network function virtualisation (NFV). Colt has built its reputation on putting its customers first, with a focus on delivering true local presence and agility for enterprises that are global yet need local attention. Customers include data intensive organisations spanning over 200 connected cities in nearly 30 countries. Colt counts 19 of the top 25 global telecoms companies and 18 out of the top 25 global media companies (Forbes 2000 list, 2016) amongst its customers. In addition, Colt works with over 50 exchange venues and 13 European central banks. Privately owned, Colt is one of the most financially sound companies in its industry and able to provide the best customer experience at a competitive price.
Telefónica is a company that is aware of the new challenges posed by today’s society. This is why we offer the means to facilitate communication between people, providing them with the most secure and state of the art technology in order for them to live better, and for them to achieve whatever they resolve. An innovative and attentive spirit with an immense technological potential that multiplies the ability to choose of its more than 350 million clients in 21 countries. Telefónica is a 100% listed company with more than one and a half million shareholders, traded in several of the most important stock markets around the world.
Twenty First Century Communications is one of the leading companies in the Telecommunications sector.
Popp Communications is one of the leading companies in the Telecommunications sector.