UUNET Continues Internet Data Center Build-Out With Two New Facilities In New York City

New NYC data centers offer colocation Web hosting services to meet growing demand for hosting Intranets, Extranets and Internet web sites

ASHBURN, VA., May 1, 2000 - UUNET, an MCI WorldCom Company and a recognized leader in Web hosting, today announced the opening of two new Internet data centers in New York City bringing the total number of data centers online to 13 worldwide. The new data centers will offer businesses enhanced colocation hosting services that deliver the performance and security necessary to run business-critical applications over the World Wide Web.

As part of its UUhost

^SM Data Center build-out initially announced last year, UUNET's New York City data centers, located in Carteret, New Jersey and Elmsford, New York, will help to meet the growing demand for colocation services in the New York City metropolitan area.

According to Yankee Group Senior Director Eric Hindin, "Despite numerous announcements from service providers and carriers, hosting and colocation space is still in short supply. In the Northeast, space is virtually sold out; the demand for colocation space is far exceeding the supply. Already a leading hosting company, UUNET continues to deliver on its strategy to build-out data centers that will meet the increasing demand for colo services especially in major markets."

"Our New York City data centers will provide our hosting customers in the Northeast with superior colocation services," said Mark Spagnolo, president and CEO of UUNET. "Because UUNET's data centers are directly integrated into our award-winning global IP network, businesses can quickly and efficiently upgrade and enhance their Web services and applications."

The New York area data center openings follow the launch of the company's Atlanta, Georgia data center which opened earlier this year. Throughout 2000, UUNET plans to open Internet Data Centers in Dallas, Los Angeles, Chicago, Boston and a second site in Washington, D.C. The company also operates UUhost data centers in San Jose, California; Washington, D.C.; Paris, France; London, England; Manchester, England; Brussels, Belgium; Dortmund, Germany; Amsterdam; Stockholm, Sweden; and Sydney, Australia. By year's end, the company is scheduled to have 18 Internet data centers online worldwide.

The New York City data centers are directly integrated into UUNET's OC-48 backbone, offering hosting customers high bandwidth availability for maximum performance and quick scalability. In March, UUNET also announced plans to deploy OC-192 with Multi-Protocol Label Switching in its U.S. network, quadrupling the company's current network speed to 10 Gigabits per second.

UUhost Data Center facilities offer businesses unparalleled technical advantages including direct access to UUNET's global IP network, maximum bandwidth flexibility through a Gigabit Ethernet LAN infrastructure and continuity of electrical power to the data center through an uninterruptible power supply (UPS), backed by a diesel generator.

UUNET's New York City data center facilities feature:

• Highly Secure Hosting Area - UUNET offers New York City-area businesses a more secure environment for their servers including 24 x 7 guard services, biometric and card key controlled access, electronic tracking, locking racks and full camera coverage throughout the facility.
• Technical Support Services - 24 x 7 on-site technical support services staffed by personnel with extensive experience and expertise in high-end solutions. As well as on-site support, all UUhost Data Center customer servers are monitored 24 x 7 from UUNET's central operations center.
• Convenient Geographical Access to Local Businesses - For businesses that prefer to manage their own servers, but require infrastructure-based services, the NYC area data centers offer an ideal environment located near their place of business.
• Customer Work Areas - Both NYC UUhost facilities are accessible 24 x 7 and are designed to meet the needs of businesses. UUNET provides customers with temporary use of work space with desks, phones and analog lines, and Internet connectivity.
• Service Level Agreement Guarantees (SLAs) - UUNET stands behind its services by providing a five-point colocation SLA covering installation, network availability, outage notification, backbone latency and uninterrupted power - an industry first guarantee. Please reference our web site at http://www.us.uu.net/support/sla/terms/colocation.html for exact SLA terms.

For a virtual tour of UUNET's UUhost Data Center facilities, please visit http://www.us.uu.net/products/hosting/datacenter/. About UUNET and MCI WorldCom
UUNET (www.uu.net), an MCI WorldCom company and a global leader in Internet communications solutions, offers a comprehensive range of Internet services to businesses, online service providers and telecommunications firms. MCI WorldCom (NASDAQ: WCOM) is a global leader in "all-distance" communications services with operations in more than 65 countries. Revenues in 1999 were $37 billion, with more than $12 billion from high-growth data, Internet and international services. MCI WorldCom and Sprint have announced a merger agreement, which the companies expect to close in the second half of 2000 after regulatory and shareholder approvals. For more information go to http://www.wcom.com.