Zayo Group Holdings Inc. said it's buying a Washington state fiber network provider that serves the western U.S. for $1.42 billion in cash.

Boulder-based bandwith infrastructure company Zayo (NYSE: ZAYO) is buying Electric Lightwave of Vancouver, Washington, near Portland, Oregon.

“Electric Lightwave has both strong metro fiber assets in key West Coast markets and capacity and routes that will augment Zayo’s intercity footprint," said Dan Caruso, chairman and CEO of Zayo, in a statement.

Zayo said Electric Lightwave has 8,100 route miles of long haul fiber and 4,000 miles of metro fiber in Portland, Seattle, Sacramento, San Francisco, San Jose, Salt Lake City, Spokane and Boise.

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