"Internet company" redirects here. For other uses, see ISP (disambiguation). This article does not cite any references or sources. (June 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. An Internet service provider (abbr. ISP, also called Internet access provider or IAP) is a business or organization that provides consumers or businesses access to the Internet or to the end user's ISP to all or parts of the Internet hierarchy. Routers, switches, Internet routing protocols, and the expertise of network administrators all have a role to play in ensuring that data follows the best available route

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