An ISP is the company the gives you access to the Internet. Not all companies offer internet access only, for example Carrier or Telecommunication providers are the ones the offer Cellular, Telephony, Broadband Internet, paid Television subscriptions and other services. Carrier providers are far more than just an ISP, yet they still count as one.
Examples will vary based on where you live, but below are some common names.
USA: Charter, AT&T, T-Mobile, Direct-TV, Comcast, …
Singapore: Singtel, Simba, Starhub, M1, …
Europe: TIM, Orange, Vodafone, Telefonica, …
LatinAmerica: Claro, Movistar, Tigo, …
China: China Telecom, China Unicom, China Mobile, …
ISP providers need to give a device to connect to their network. They usually will need to have a subscriber network and provide DNS service to their subscribers.
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