HOUSTON, TEX. and ATLANTA, GA. – (July 22, 2008) – Internap Network Services Corporation (NASDAQ: INAP), a global provider of end-to-end Internet business solutions, announced today the availability of 7,000 square feet of new enterprise data center space at its Fannin Street facility in Houston, Tex. This expansion nearly doubles the existing site, creating 15,000 square feet of usable space designed for high power density installations, energy efficiency and redundant power. Internap’s expanded Fannin Street data center will power global technology initiatives for local companies and attract new businesses to Houston as an extension of their IT operations.

Internap has offered data center colocation and networking services in Houston since 2000. The company’s additional investment in the Houston economy signifies the growing demand from both local businesses and organizations outside of Houston for robust and sophisticated Internet technology solutions. The new space has the power, cooling, security and operations to support approximately 60 companies in addition to the 60 companies currently installed in the facility, including ContentActive, Goodman Manufacturing and Prudential Real Estate Services Co.   “Internap’s Houston data center is an essential component of our entire business infrastructure,” said Brian Gaubert, chief executive officer for ContentActive, a web development company in Houston. “The trusted IT operations and facility management Internap provides not only helps us deliver superior service, it also attracts new customers as a result of the company’s reliable solutions and outstanding reputation.”

Internap’s data center expansion aligns with a city-wide initiative to leverage technology in an effort to improve local business dealings. Lead by Mayor Bill White, more than $314 million of the city’s resources were dedicated to Houston’s high-tech efforts during the 2007 fiscal year1. Internap recognized the progressive outlook of Houston’s IT efforts and is helping to increase exposure for the city nationwide by expanding its data center in Houston.

"Houston is America's fastest growing big city and there's a reason so many people want to live and work here at jobs with a future," said Mayor Bill White. "It's due in large part to our friendly business climate and our strong position in the global marketplace, including a commitment to innovation and technology. Internap is a welcome corporate citizen and a perfect example of how we can play to that strength."

Internap’s carrier-neutral data center features one of the most robust, power-dense infrastructures in Houston, offering customers 150 watts / square foot of conditioned power. The building in which the facility is housed is rated to withstand 200+ mph winds and the location of Internap’s data center on an upper floor provides protection from potential flooding and damage from heavy rains. The combination of raised flooring and overhead returns provide energy-efficient cooling while redundant generators deliver back-up power, ensuring maximum reliability, efficiency and performance. The facility supports six levels of security, redundant data center access with camera systems, and 24x7 secured loading docks and receiving, providing full-scale safeguards for customers. The site also features diverse electrical substation feeds with integrated transformers, multiple carrier PoPs (Points of Presence) and entrance vaults with enhanced remote services.

“Internap is investing in the growth of high technology solutions in Houston,” said James P. DeBlasio, president and chief executive officer at Internap. “Our expanded data center is a platform for providing IT services with 100% reliability to power business-critical websites and Internet applications. As we match our resources to the city’s mission of building its economy and business community, we are attracting enterprise customers to the area at a rapid pace.”

Internap will host a grand opening reception on Thursday, July 24 from 3:00pm to 7:00pm CDT to provide current and potential customers guided tours of the new facility. To reserve a spot at this event, please visit http://www.internap.com/learning/events/page870.html.

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.