BOULDER - Bandwidth infrastructure provider Zayo Group LLC has expanded its European footprint for the second time in three weeks, announcing Friday that it has acquired London-based fiber-optics provider Geo Networks Ltd.

No purchase price was disclosed. But the Zayo announcement said the company would fund the deal with a combination of cash on hand and a draw from its revolving credit facility.

The acquisition is Boulder-based Zayo's 31st since 2007. In April, Zayo acquired Paris-based Neo Telecoms.

The Geo acquisition adds more than 2,100 route miles of fiber to Zayo's European network and connectivity to 587 on-net buildings. That includes Geo's 100-mile London network that is housed in the city's sewer system to minimize the threat of physical faults and enabling rapid deployment.

The acquisition also gives Zayo a presence in Ireland, specifically, connectivity to Dublin.

"Geo's extensive fiber and conduit assets complement our existing London footprint and bring an increased breadth to our UK network," Zayo chief executive Dan Caruso said in a statement. "Additionally, diverse connectivity to Dublin is critical as it continues to develop as an international data center hub."