ATLANTA, GA – (November 13, 2007) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, today announced that SoftLayer, a rapidly growing and innovative supplier of on-demand hosting services, signed a 5-year $16 million contract with Internap to deliver data center and network services to power its utility hosting solution. Based on this Internap solution, SoftLayer will deliver hosting services to its clients using 10,000 servers installed in Internap’s Seattle data center and over 30-gigabits of Internap-provisioned, high-performance IP networking at SoftLayer’s data center in Dallas and Internap’s data center in Seattle.

"Internap has been the most respected provider of enterprise networking services for the past decade,” said Sean Charnock, vice president of business development at SoftLayer. “We have used Internap’s IP network service in our Dallas facility for the past two years and are excited to expand our Internap network services and add Internap's high-quality data center and management services as part of our hosting solution. We view Internap as a strategic partner as we continue our exponential growth pattern through 2008 and beyond.”

SoftLayer is unique in the hosting industry in that it is making utility computing broadly available to enterprise clients via a massively scalable server architecture and “network-in-a-network” platform. The server architecture is designed to provide maximum power and space efficiency and expands easily to support integrated hosting solutions across data center facilities. The network-in-a-network design provides Internet bandwidth to support hosted applications and interconnectivity between data centers to enable server-to-server file transfer, load balancing, and business continuity and disaster recovery (BCDR).

“SoftLayer’s unique solutions strategy is fueling their exponential growth,” said James P. DeBlasio, chief executive officer at Internap. “They needed a network and data center partner they could trust to grow with them and we are pleased they selected Internap. This 5-year $16 million contract for network services and data center space enables SoftLayer’s innovative hosting solution today and is the platform to support their future growth.”

Internap will deliver an integrated solution to SoftLayer that includes route-optimization technology and expertise, high-performance IP networking, data center space and power. Core to the Internap service is Internap’s Flow Control Platform (FCP) and patented route-optimization technology known as MIRO (Managed Internet Route OptimizerTM), which combine to provide a high-performance network to SoftLayer. The result is enterprise customers of all sizes, and particularly small and mid-size organizations, are able to easily implement a SoftLayer hosting solution for their Web sites and business applications as part of a secure, network-enabled and environmentally efficient infrastructure.

SoftLayer’s hosting solution is expected to go live in December 2007 using two independent 10-gigabit high-performance IP network circuits from Internap in the company’s Seattle data center in addition to the 10-gigabit Internap circuit already installed at SoftLayer’s Dallas data center. Internap’s Seattle data center was designed for maximum security, redundancy, and power supporting up to 150 watts per square foot. Internap’s FCP technology and professional services deliver a highly-tuned network solution with automated route-optimization that selects the best Internet route based on performance and efficiency. In addition, Internap’s industry leading content delivery services can be easily added to the SoftLayer hosting solution to further increase the value delivered to its customers.

About SoftLayer
Located in the INFOMART in Dallas, Texas, SoftLayer was formed in June 2005 by a team of industry executives seeking to deliver low cost next generation on-demand hosting services for the small to medium enterprise (SME). Utilizing proprietary software, coupled with the industry's first network-within-a-network topology, the company delivers unprecedented power and control to securely manage IT environments while providing unparalleled scalability. For more information please visit www.SoftLayer.com or call 866.398.7638.

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.