ATLANTA, Feb. 2, 2012 — Internap Network Services Corporation (NASDAQ: INAP), a leading provider of high-performance IT infrastructure services, will release fourth quarter and full-year 2011 financial results after market close on Thursday, February 23, 2012. At 5:00 p.m. EST the same day, senior management will host a conference call presentation to discuss the results.

The call can be accessed by dialing 866-515-9839. International callers should dial 631-813-4875. Listeners may connect to the simultaneous webcast, which will include accompanying presentation slides, on the Investor Services section of our web site at http://ir.internap.com/events.cfm. An online archive of the webcast presentation will be available for one month following the call. An audio-only replay will be accessible from Thursday, February 23, 2012 at 8 p.m. EST through Wednesday, February 29, 2012 at 855-859-2056 using the replay code 48800437. International callers can listen to the archived event at 404-537-3406 with the same code.

About Internap Transform your IT Infrastructure into a competitive advantage with IT IQ from Internap, intelligent IT Infrastructure solutions that combine unmatched performance and platform flexibility. Since 1996, thousands of enterprises have entrusted Internap to deliver their online applications across our portfolio of connectivity, colocation, managed hosting, cloud and hybrid services. For more information, visit our blog at http://www.internap.com/blog, or follow us on Twitter at http://twitter.com/internap.