Plano Phase One

Plano Phase One is a colocation data center operated by Flexential in Plano, Texas, United States. The Uptime Institute lists it with Tier III (Certification of Constructed Facility; Certification of Design Documents). Tier III means the site can be maintained without shutting down IT equipment. It is one of 94 facilities in the United States on the Uptime Institute's Tier list.

In Plano, Flexential runs 2 of the 19 listed facilities; by number of listings it ranks joint 3rd of 8 operators there. In the Dallas–Fort Worth market it has 5 of 150 listed facilities, joint 6th of 40 operators by number of listings. Flexential has 52 listed facilities, all of them in the United States; its other sites there are in Hillsboro (7), Franklin (3), Salt Lake City (3), Alpharetta (2) and 29 other cities.