 UUNET Technologies Logo | |
| Verizon Enterprise Solutions Verizon Business | |
| Company type | Subsidiary |
| Industry | Telecommunications |
| Founded | 1987 |
| Defunct | 2006 |
| Fate | Acquired by Verizon Communications in 2006 |
| Headquarters | Ashburn, Virginia, U.S. |
| Products | Conferencing, Contact Centers, Data and IP Services, Internet access, IT Solutions and Hosting, Managed Networks, Premises Equipment (CPE), Security, Voice, VoIP, Wireless |
| Parent | Verizon Communications (2006–present) |
| Website | www.uu.net (archive.org) |
UUNET, founded in 1987, was one of the first and largest commercial Internet service providers and one of the early Tier 1 networks. It was based in Northern Virginia. Today, UUNET is an internal brand of Verizon Business (formerly MCI).[citation needed]