Richardson may be site of large center for XO.

XO Communications Inc. will decide soon whether to go forward with a huge administrative and data center in Richardson.

The Reston, Va.-based telephone and data services company would consolidate its 1,500-member workforce in the Dallas area into a 300,000-square-foot building, which also would house a large training operation.

The roughly 40-acre site near the intersection of Waterview Parkway and State Highway 190 also would include an 80,000-square-foot data center, which would provide Web hosting, server management, co-location and related services. In addition, it would supply internal support for XO's technical operations, featuring systems that handle …