CLASS calling features which were making their debut in New York at that time. In 1993, then Rochester Telephone Corporation, the company became the first telephone company to open its local telephone lines to competition. Time Warner and AT&T were among the leading competitors; AT&T later withdrew. Frontier Corporation (1995-1999) In 1995, the company repositioned itself as a holding company and changed its name to Frontier Corporation. The company separated its local telephone lines in Rochester into a separate operating company also named Rochester Telephone Corporation. This company was eventually renamed in 1997 to Frontier Telephone of Rochester, Inc. The company operated a wireless subsidiary called Frontier Cellular. It was a joint venture with Bell Atlantic. Global Crossing North America (2000-2001) Frontier's investment in fiber long lines proved attractive in the exploding global communications market in the late 1990s when it was acquired in 1999 by Global Crossing, a Bermuda-based communications network enterprise. In 2000, the holding company adopted its current name, Global Crossing North America, Inc. In 2001, Global Crossing North America's local exchange assets, including Frontier Telephone of Rochester and Frontier Subsidiary Telco, and ownership of the Frontier name were sold to Citizens Communications Company, which in 2008 renamed itself Frontier Communications. Leadership Rochester Telephone/Frontier subsidiaries The Rochester Telephone, later Frontier Corporation, companies refer to all the local telephone companies owned by Global Crossing North America prior to the companies' sale to Citizens Communications. These companies include: Frontier Communications - Midland, Inc. (Illinois) Frontier Communications - Prairie, Inc. (Illinois) Frontier Communications - Schuyler, Inc. (Illinois) Frontier Communications - St. Croix LLC (Wisconsin) Frontier Communications of Alabama LLC Frontier Communications of Breezewood, LLC (Pennsylvania) Frontier Communications of Canton, LLC (Pennsylvania; acquired in 1988) Frontier Communications of DePue, Inc. (Illinois) Frontier Communications of Fairmount, LLC (Georgia) Frontier Communications of Georgia LLC Frontier Communications of Illinois, Inc. Frontier Communications of Indiana LLC Frontier Communications of Iowa, LLC Frontier Communications of Lakeside, Inc. (Illinois) Frontier Communications of Lakewood, LLC (Pennsylvania) Frontier Communications of Lamar County LLC (Alabama) Frontier Communications of Michigan, Inc. Frontier Communications of Minnesota, Inc. Frontier Communications of Mississippi LLC Frontier Communications of Mondovi LLC (Wisconsin) Frontier Communications of Mt. Pulaski, Inc. (Illinois) Frontier Communications of Orion, Inc. (Illinois) Frontier Communications of Oswayo River LLC (Pennsylvania) Frontier Communications of Pennsylvania, LLC Frontier Communications of the South LLC Frontier Communications of Thorntown LLC (Indiana) Frontier Communications of Viroqua LLC (Wisconsin) Frontier