HERNDON, VA -- June 24, 2003 – SAVVIS Communications (NASDAQ: SVVS), a leading global managed IP and managed hosting services provider, today announced that Secure Dog Hosting, a DITSCAP-certified provider of secure and reliable hosting to Federal government agencies, has selected SAVVIS to increase its network capacity and support its broad range of applications and services.

Secure Dog serves federal agencies, such as the Department of Defense, United States Postal Service, Air National Guard, and the United States Navy.

“We chose SAVVIS over companies like UUNet, AT&T and Sprint because only SAVVIS could deliver the level of network security and availability required by our federal clients,” said John McClure, Chief Technology Officer at Secure Dog Hosting. “SAVVIS gives us the confidence and ability to provide our own 100 percent uptime SLA, which many of our government and Department of Defense clients specifically require.”

The SAVVIS network will support Secure Dog’s broad range of applications and services, including secure hosting, database hosting, and most Internet technologies. With the addition of a DS-3 circuit from SAVVIS, they are now able to offer higher bandwidth services.

“We expect that the return on our investment in moving to the SAVVIS network will be big and relatively quick,” McClure said. “With the increased capability of our new DS-3 circuit, we are now able to expand our services, attract larger projects, and support many of our clients who require the increased bandwidth that SAVVIS has afforded us.”

“From SAVVIS’ sales and installation teams, through their Quality of Service metrics, to their proactive Network Operations Center, we have been 100 percent satisfied with the level of support. The SAVVIS team is more proactive than any other we have worked with,” McClure added.

“We’re pleased that the stringent technology demands of the Federal Government are now creating opportunities for the qualities inherent in ‘The Network That Powers Wall Street’,” said Jack Finlayson, SAVVIS president and chief operating officer. “Our industry-leading SLAs and guaranteed network availability are now benefiting innovative technology companies like Secure Dog Hosting in meeting these technology requirements while expanding their own service offerings.”

As a leading application infrastructure provider for the media & entertainment, healthcare, retail and financial services industries, as well as professional services firms worldwide, SAVVIS manages over 17,000 end-points in 45 countries and leads the industry by delivering 100 percent availability across its backbone and 99.999 percent end-to-end availability to client’s facilities.

SAVVIS’ managed hosting data centers in St. Louis, San Francisco, New York, and Singapore are premier facilities with the highest levels of security, redundancy, and on-site support. SAVVIS has added additional hosting customers and data centers in Chantilly, VA, Santa Clara, CA, London, and Tokyo as part of an agreement with Intel Online Services who selected SAVVIS as the preferred provider to deliver a managed hosting services alternative to its clients in the U.S., U.K. and Japan.

About Secure Dog Hosting
Secure Dog Hosting, Inc. (SecDog), a DITSCAP Level 2 certified provider, is a secure data center with its primary focus on maintaining a strong security posture. Most hosting providers take basic steps in securing their network and hosts. SecDog goes a step further by providing a fully redundant and secure network. SecDog also provides customized security solutions for its client base. SecDog validates its strong security stance through regular internal and third party security audits. For more information about Secure Dog Hosting, visit: http://www.secdog.com/

SAVVIS Communications (NASDAQ: SVVS) is a leading managed services provider that delivers IP VPNs (virtual private networks), hosting, and application services to businesses. SAVVIS solutions are designed for industries with demanding information technology requirements including legal, media, retail, professional services, healthcare, manufacturing, and financial services.

Known as The Network that Powers Wall StreetSM, SAVVIS was ranked #3 in IP VPN market share by IDC in its 2003 report, trailing only AT&T and WorldCom, and its network reliability was declared “perfect” in Network World magazine’s groundbreaking study of backbone performance. SAVVIS recently won the first ever American Business Awards “Stevie”TM in the category of “Best Customer Service Organization.” SAVVIS’ managed hosting services were awarded the Service Provider Excellence Award by Boardwatch magazine for its virtualized approach to managed hosting, and the Market Engineering Award from Frost & Sullivan for product differentiation and innovation.

For more information about SAVVIS’ Intelligent IP NetworkSM and managed hosting solutions, visit: .

Carter B. Cromley
SAVVIS Communications
(703) 234-8033

Samantha Edwards
(202) 828-9754