This article was originally posted on The Dallas Business Journal. Read it here.

With the city’s booming technology sector, data is keeping the D in Dallas.

The area hosts at least 56 data centers, almost half of all facilities in Texas, according to Data Center Map, a website that has cataloged 2,500 facilities in 90 countries. That figure is also larger than the number of centers in Houston, Austin and San Antonio combined.

Aside from the already-established facilities, additional sites are underway, including QTS’ mega data center on 40 acres in Irving. After completion, it will be one of three mega centers QTS owns in the United States.

But what’s making North Texas attractive for data hubs? The answer begins with the region reeling in companies from around the world, like global finance firm UBS. With every corporation comes large data storage needs, and where a commodity is in demand, innovation in the sector gets a big push.

One factor is Dallas’ fiber optic network, built in the late 1990s. At that time, developers built three large power grids across the country — an East Coast grid, a West Coast grid and a Texas grid. Originally designed to connect the United States for phone service, existing fiber optic cable is now being repurposed to connect companies with data centers across DFW. Easy access to fiber offers a big lure for data centers looking for a place to build.

“This is a crossroads of where AT&T and other companies had built their networks years ago,” said Hugh Carspecken, CEO of DartPoints, a Dallas-based company that provides on- and near-site data center services. “That makes Dallas one of the top data center spots in the country, if not in the world.”

Keep reading this post on The Dallas Business Journal