Definition of Internet service provider
: a company that provides its customers with access to the Internet and that may also provide other Internet-related services (such as email accounts)
—abbreviation ISP
— called also access provider
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“Internet service provider.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Internet%20service%20provider. Accessed 12 Aug. 2022.
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Time Traveler for Internet service provider
The first known use of Internet service provider was in 1990
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