"ISP" redirects here. For other uses, see
ISP (disambiguation).
An Internet service provider (ISP, also called Internet access provider or IAP) is a company which offers their customers access to the Internet. The ISP connects to its customers using a data transmission technology appropriate for delivering Internet Protocol datagrams, such as dial-up, DSL, cable modem or dedicated high-speed interconnects.
ISPs may provide Internet e-mail accounts to users which allow them to communicate with one another by sending and receiving electronic messages through their ISPs' servers.
ISPs may provide other services such as remotely storing data files on behalf of their customers, as well as other services unique to each particular ISP.