Internap Network Services, a provider of Internet routing and business related solutions, is preparing to embark on an expansion program of “several” of its facilities at a cost of up to $40 million.

The program will take place over the next nine to 12 months, the company said Tuesday. The expansion follows the recent acquisition of VitalStream, a California-based company focused on content delivery solutions, including streaming audio and video.

Internap (NASDAQ: INAP) operates facilities in several cities across the United States as well as Canada, Europe, Asia and Australia.

“We are seeing unprecedented demand for Internap’s data center services, particularly now that we are able to offer our customers a full suite of products and services from colocation and IP route optimization, to CDN and ad monetization services,” said James DeBlasio, president and chief executive officer of Internap. “This expansion dramatically improves Internap’s position in the marketplace as the Internet solutions provider of choice.”

CDN stands for content delivery network services.