LONDON, October 7th 2008 - Interxion, a leading European provider of carrier-neutral data centres, today announced that Internap Network Services Corporation, a US-based provider of end-to-end internet business solutions, has expanded its presence in both Interxion’s London and Amsterdam data centres. Since becoming a customer less than a year ago, Internap has doubled its footprint in the Interxion London facility in response to a sharp rise in customer demand.

The Interxion London data centre provides 2N redundancy configurations as well as high power density of up to 20kW per cabinet. It also hosts a Point of Presence for the London Internet Exchange (LINX), providing a connectivity-rich environment for customers.

Internap offers its 3,700 enterprise clients a complete package of high-performance IP networking, data centre colocation, and content delivery network (CDN) services. They have 44 data centre locations around the world and a global, route-optimized network infrastructure. Internap deploys patented MIRO (Managed Internet Route Optimiser™) technology to enhance customer data communications. MIRO monitors the performance of Internet backbones and automatically selects the best path to global destinations, thus providing maximum reliability and low-latency data and content delivery.

“Our relationship with Internap is growing fast in London because we are uniquely located on the edge of the City, and house a vibrant and interactive customer community,” said Greg McCulloch, Interxion UK Managing Director. “Add to this high availability and high power density, and the data centre becomes an extremely attractive European gateway for Internap customers.”

“Interxion brings all the ingredients our customers need together under one roof in London,” said Daniel Beazer, General Manager, Internap UK. “Our customers have access to the latest high-specification space, an exceptional platform for our IP networking and CDN services and, with 13 megawatts of power, the data centre can easily meet our customers’ medium-to-high power capacity requirements.”

About Interxion
Interxion is a leading European provider of carrier-neutral data centres. Headquartered in Schiphol-Rijk, The Netherlands, Interxion serves its customers from 23 carrier-neutral data centres located in 13 cities across 11 European countries. Interxion serves network and carrier-based, hosting and enterprise customers who require professionally managed and strictly controlled physical environments within which to operate mission-critical applications and computer systems. Interxion’s data centres offer cost-effective and fast access to multiple local and global communication networks. For more information please visit www.interxion.com

About Internap
Internap is a leading Internet solutions company that provides The Ultimate Online Experience™ by managing, delivering and distributing applications and content with unsurpassed performance and reliability. With a global platform of data centers, managed Internet services, a content delivery network (CDN) and content monetization services, Internap frees its customers to innovate their business and create new revenue opportunities. More than 3,000 companies across the globe trust Internap to help them achieve their Internet business goals. For more information, visit www.internap.com.

Internap “Safe Harbor” Statement
Certain information included in this press release constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, including, among others, statements regarding the performance of our products, business strategy, projected levels of growth, and projected costs, are forward-looking statements. Those statements include statements regarding the intent, belief or current expectations of Internap and members of our management team, as well as the assumptions on which such statements are based. Forward-looking statements are not guarantees of future performance and involve risks and uncertainties that actual results may differ materially from those contemplated by forward-looking statements. Other important factors that may affect Internap's business, products, results of operations and financial condition include, but are not limited to: our ability to sustain profitability; our ability to respond successfully to technological change; the availability of services from Internet network service providers or network service providers providing network access loops and local loops on favorable terms, or at all; failure of third party suppliers to deliver their products and services on favorable terms, or at all; failures in our network operations centers, network access points or computer systems; the ability to successfully integrate the operations of Internap and VitalStream Holdings, Inc.; and our ability to protect our intellectual property.

Our Annual Report on Form 10-K/A, subsequent Quarterly Reports on Form 10-Q, recent Current Reports on Form 8-K and other Securities and Exchange Commission filings discuss the foregoing risks, as well as other important risk factors that could contribute to such differences or otherwise affect our business, results of operations and financial condition. We undertake no obligation to revise or update any forward-looking statement for any reason.