WorldCom Opens International Data Center (IDC) in Singapore. The Singapore IDC offers business customers colocation as well as access to WorldCom's industry leading IP backbone network. Direct access to the network provides customers high bandwidth av

WorldCom Focuses on Data, Internet and Network Services Which Enable Customers to Conduct e-Business.

Singapore, 21 June 2001 - WorldCom (NASDAQ: WCOM) today opened its eighth International Data Center (IDC) in the Asia Pacific region with the commissioning of a new IDC in Singapore. WorldCom Senior Vice President & Chief Technology Officer Fred Briggs, WorldCom Asia Pacific President William Barney and Mr. Chay Wai Chuen, Chairman of Government Parliamentary Committee for Communications and IT, presided at the opening ceremonies.

The Singapore IDC offers business customers colocation as well as access to WorldCom's industry leading IP backbone network. Direct access to the network provides customers high bandwidth availability for maximum performance and rapid scalability.

Mr. Chay Wai Chuen, Chairman Government Parliamentary Committee for Communications and IT said, "International data centers are essential to deliver secure, reliable infrastructure for hosting companies' data. Many companies are capitalizing on the power of the Internet and new technologies to improve their international presence. WorldCom is one of the first companies that has fully embraced data and Internet technologies in the new digital economy. The data center being opened today will respond rapidly to customers' hosting outsourcing needs and allow them to better concentrate on their core businesses."

WorldCom Senior Vice President and Chief Technology Officer Fred Briggs said IDC's are part of the company's facilities-based strategy and are one of the key future growth drivers for WorldCom. "We differentiate ourselves from new and established competitors with our state-of-the art, high-speed global IP network, and our leadership position as a single-source digital communications provider to business customers around the world," Briggs added.

"The launch of WorldCom IDC in Singapore is testimony to our solid commitment in Singapore," said William Barney, WorldCom Asia Pacific President. "We are focused on growth in Asia and Singapore is a key market for WorldCom. As the first international company to be awarded a Facilities-Based Operators license, we are proud to be helping Singapore become the region's leading digital communications hub."

Barney added, "In line with our global "generation d" initiative, WorldCom is uniquely positioned to be the preeminent global communications company for the digital generation. We do this by extending our global data and Internet end-to-end network and transport services to include a broad range of eBusiness enabling value-added services."

The state-of-the-art 34,000 square foot facility is fully equipped with sophisticated security, fire and earthquake protection, and back-up power generation systems. WorldCom's other IDC facilities in the Asia Pacific region are located in Sydney, Melbourne, Hong Kong, Osaka, and three centers in Tokyo.

About WorldCom
WorldCom (NASDAQ: WCOM) is a preeminent global communications company for the digital generation, operating in more than 65 countries with 2000 revenues of approximately $39 billion. WorldCom provides the innovative technologies and services that are the foundation for business in the 21st century. For more information, go to http://www.worldcom.com/asiapac

Facts about WorldCom Singapore

WorldCom established operations in Singapore in October 1997. With deregulation of the Singapore telecommunications market, WorldCom Singapore was the first U.S. carrier to receive a Facilities Based Operator (FBO) license from the Infocomm Development Authority (IDA) in April 2000.

Since receiving the license, WorldCom has launched a range of digital communications services, such as ATM and voice services. As the first non-domestic company to build a state-of-the-art resilient metro network in Singapore, WorldCom is capable of providing a range of international, data, Internet and local voice services to businesses in Singapore.

Singapore is home to one of WorldCom's state-of-the-art network operations centres. This centre provides comprehensive network management, fault handling as well as facilities management services on a 24x7, 365-day basis. Service offerings in Singapore include:

• Data: ATM, Frame Relay, Global Data Link, Dealer Voice and Co-location
• Voice: IBV Direct Service, IBV Indirect Service and International Free Phone
• Internet: Internet Access Service, IPVPN, Private IP, Web Hosting