CenturyLink

AT&T’s $5.75 billion purchase of Lumen Technologies home fiber-internet business will impact 1 million customers nationwide, including an undisclosed number in Colorado who buy fiber service from Quantum Fiber, a brand that originated under CenturyLink.

The deal, pending regulatory approval, was announced Wednesday, and means AT&T will step into the consumer world of fiber internet service for the first time, at least here in Colorado.

Besides picking up Lumen’s Colorado market, AT&T will add customers in 10 other states for a total of 1 million fiber customers. Lumen’s current network could serve 4 million households if every home ordered it.