MCI WORLDCOM HONORED BY CIO MAGAZINE AS TOP 50 INTERNET/INTRANET SITE

FRAMINGHAM, MASS., July 13, 1999 - CIO magazine selected MCI
WorldCom as a 1999 CIO Web Business 50/50 Award winner for the
contribution the company's intranet has made to online business
excellence.
Each year, CIO magazine recognizes 50 Internet and 50
intranet/extranet sites that go beyond customary Web commerce practices
to deliver outstanding business value. The third annual CIO award
program distinguishes organizations around the world that have taken a
distinct approach toward the use of the Internet or intranet in their
business. The MCI WorldCom Career Enhancement University (CEU) was an
intranet award recipient this year. From live web training to
simulation training to self-paced training; the CEU offers employees a
range of courses at the click of a button right at their desktops.

The goal of the intranet and its accompanying Internet sites and
internal data networks is to create a unified work environment to
facilitate online training, communication and collaboration among MCI
WorldCom employees. The use of MCI WorldCom's CEU intranet saved
the company nearly $3 million in 1998, reducing the cost per student by
22 percent.

"MCI WorldCom long ago saw the vision for leveraging our
intranet for training throughout the enterprise," said Robert
Kamba, senior vice president, network management and technical support
at MCI WorldCom. "Our investment in the intranet as a tool to
educate our employees has not only resulted in reduced training costs,
but is testament that new technologies can and will impact how
companies conduct business as we move into the next millennium. MCI
WorldCom is extremely pleased to be recognized as a technology leader
by such a well-regarded publication like CIO."

Winners of the CIO Web Business 50/50 Award are selected by a panel
of CIO magazine editors, writers, art designers and Web development
experts. The judges evaluate hundreds of nominated sites for their
ability to use innovative Web techniques to deliver greater business
value. In particular, the panel focuses on finding sites that
successfully integrate creative design and high-quality technical
attributes. The judges measure how well the blend of technology and
design contributes to the organization's overall business objective
as well as the site's ability to meet the needs of the target
audience.

Complete coverage of the 1999 CIO Web Business 50/50 Awards is
featured in the July issue of CIO and at http://www.cio.com.

About MCI WorldCom

MCI WorldCom is a global leader in communications services with 1998
revenues of more than $30 billion and established operations in over 65
countries encompassing the Americas, Europe and the Asia-Pacific
regions. MCI WorldCom is a premier provider of facilities-based and
fully integrated local, long distance, international and Internet
services. MCI WorldCom's global networks, including its
state-of-the-art pan-European network and transoceanic cable systems,
provide end-to-end high-capacity connectivity to more than 40,000
buildings worldwide. MCI WorldCom is traded on NASDAQ under WCOM. For
more information on MCI WorldCom, visit the World Wide Web at
http://www.wcom.com.

About CIO Communications Inc.

CIO Communications Inc. was formed in 1987 to help chief information
officers (CIOs), information technology (IT) executives and other
senior management executives succeed in their enterprises through the
use of information technology. In addition to publishing the
award-winning magazine, the company also produces the www.cio.com Web
site and develops and produces CIO Executive Programs - a series of
conferences that provide educational and networking opportunities for
corporate and government executives who want to expand their knowledge
of technology, business management issues and innovative products and
services. CIO magazine is a publication of International Data Group,
the world's leading IT media, research and exposition company.