New York City Data Center Provides Reliable East Coast Presence to Support Company’s Rapid Growth

ATLANTA – August 10, 2010 Internap Network Services Corporation (NASDAQ: INAP), a leading provider of end-to-end Internet business products and services, today announced that Five9, Inc., a global provider of on-demand call center software, is utilizing Internap’s data center in New York City to improve the resiliency and scalability of Five9’s cloud-based call centers. After growing for years at a rate faster than the on-demand call center industry as a whole, Five9 selected Internap to provide reliable, geographical redundancy to continue its expansion.

Located in the global communications hub of New York City at 111 8th Avenue, Internap’s SAS 70 Type II facility features multiple layers of hardened physical security and is staffed and secured 24/7. The state-of-the-art data center is served by top-tier telecommunications carriers and is equipped with fully-redundant power and HVAC systems to ensure service continuity.

“Our selection of Internap represents a key strategic decision for Five9,” said Jim Dvorkin, CTO of Five9, “as it provides high availability and geographical redundancy for our Silicon Valley data center, and the New York location is in closer proximity to Europe to facilitate our continued expansion. Internap’s network backbone provides us with resiliency and high quality connectivity for the tens of thousands of call center agents we support worldwide.”

Five9 pioneered the on-demand call center software market. With the largest engineering team in the on-demand call center industry, Five9 continues to grow and enhance its product platform to deliver reliable, scalable on-demand call centers quickly, to companies of all sizes, at a cost of ownership far lower than traditional premise-based solutions.

“As more organizations such as Five9 seek to expand internationally, the quality and availability of the underlying network and the reliability of the facility that supports these applications becomes critical to business performance and strategic growth,” said Peter Evans, SVP of Marketing at Internap. “Given Internap’s network performance capabilities, IP acceleration and industry-leading SLAs, Internap’s data center facilities and services are unmatched.”

Internap offers a comprehensive set of data center services, ranging from colocation to managed hosting, which allow customers to deliver and store content and data on a reliable and scalable technology infrastructure. Customers can also easily access Internap’s high-performance IP network and content delivery network (CDN) from their worldwide locations. Internap’s IP network, CDN and data center services utilize the company’s patented Managed Internet Route Optimizer ™ (MIRO) technology, which analyzes network performance characteristics – such as available bandwidth, delays and packet loss – in real time. This ensures that Internet traffic is routed over the best path 100% of the time.

About Five9

Five9 is the leading global provider of on-demand call center software for telemarketing, customer service, and business continuity. The award-winning Five9 Virtual Call Center and Predictive Dialer serve customers of all sizes on five continents. Customers profit from Five9’s reliable, robust functionality that is fast, easy, and affordable to deploy. For more information, visit www.Five9.com. Like Five9? Tell your friends: www.Facebook.com/CallCenterSoftware

About Internap

Internap is a leading Internet products and services company that provides The Ultimate Online Experience® by managing, delivering and distributing applications and content with a 100% uptime reliability service level agreement. With a worldwide platform of data centers, managed Internet services and CDN, Internap frees its customers to innovate, improve service levels and lower the cost of IT operations. Thousands of companies across the globe trust Internap to help them achieve their Internet business goals. For more information, visit http://www.internap.com/.

About Internap’s 111 8th Avenue Data Center Facility

Internap’s Manhattan data center is located at 111 8th Avenue, just 15 miles from Newark International Airport, 10 miles from La Guardia Airport and 19 miles from JFK International Airport. The SAS70 Type II facility boasts 76,000 square feet and offers colocation, CDN and Performance IP route optimization services. The site’s strategic location, in the Chelsea section of Manhattan, allows Internap to serve some of the areas largest financial, e-commerce and rich media companies. Internap also boasts a sister downtown New York City data center located at 75 Broad Street.

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Forward-Looking Statements

This press release contains forward-looking statements. These forward-looking statements include statements related to the features, functionality and performance of our products and services and the benefits our customers are expected to receive from them. Because such statements are not guarantees of future performance and involve risks and uncertainties, there are important factors that could cause our actual results to differ materially from those in the forward-looking statements. These factors include the actual performance of our products and services; 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, data centers, network access points or computer systems; our ability to provide or improve Internet infrastructure services to our customers; and our ability to protect our intellectual property, as well as other factors discussed in our filings with the Securities and Exchange Commission. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results. We undertake no obligation to update, amend or clarify any forward-looking statement for any reason.

Media Contacts

Joanna Horn
404-343-6736
internap@daviesmurphy.com

Investor Contacts

Andrew McBath
Internap
404.302.9700
amcbath@internap.com