UUNet

UUNET, founded in 1987, was one of the largest Internet service providers and one of the early Tier 1 networks. It was based in Northern Virginia and was one of the first commercial Internet service providers. Today, UUNET is an internal brand of Verizon Business (formerly MCI).

Prior to its founding, access to Usenet and e-mail exchange from non-ARPANET sites was accomplished using a cooperative network of systems running the UUCP over POTS lines. During the mid-1980s, growth of this network began to put considerable strain on the resources voluntarily provided by the larger UUCP hubs. This prompted Rick Adams, a system administrator at the Center for Seismic Studies, to explore the possibilities of providing these services commercially as a way to reduce the burden on the existing hubs.

With funding in the form of a loan from Usenix, UUNET Communications Services began operations in 1987 as a non-profit corporation providing Usenet feeds, e-mail exchange and access to a large repository of software source code and related information. The venture proved successful and shed its non-profit status within two years. At the same time, the company changed its name to UUNET Technologies. In 1990, UUNET launched its AlterNet service, which provided access to an backbone independent of the constraints of those operated by the government. That network lives on in a much larger form and serves as the core of a set of products which include access at dial-up and broadband speeds as well as web hosting.

In the mid-1990s, UUNET was the fastest-growing ISP, outpacing MCI and Sprint. At its peak, Internet traffic was briefly doubling every few months, which translates to 10x growth each year. However, the continuing UUNET claims of such growth (long after it had fallen to lower, albeit still substantial levels) artificially fueled the expectations of the dot-com and telecom companies of the late 1990s, leading to the dot-com bubble and crash in 2000/2001.

...
Wikipedia