STERLING, Va. -- NeuStar, Inc. (NYSE: NSR) , a provider of essential clearinghouse services to the communications and Internet industry, today announced that Jeffrey A. Babka, the company's senior vice president and chief financial officer, will leave the company to become chief financial officer of Sophos Plc, a world leader in IT security and data protection. Although Mr. Babka will immediately step down as NeuStar's chief financial officer, he will remain with the company through the end of March, supporting year-end financial reporting activities and other financial and organizational issues.

NeuStar's board of directors has appointed Paul S. Lalljie, the company's vice president and treasurer, as senior vice president and interim chief financial officer reporting to the chairman and chief executive officer, Jeff Ganek. Since joining NeuStar in 2000, Mr. Lalljie has held several positions in corporate finance including accounting, financial planning and analysis, treasury and investor relations. A search for a successor, which includes internal and external candidates, has been initiated.

"Jeff Babka has played a central role at NeuStar, successfully managing the IPO, building a strong public company financial organization as well as helping us grow our global infrastructure. I am personally grateful to him for his leadership, expertise and dedication, and wish him well in his exciting international opportunity," said Ganek. "Paul Lalljie has successfully managed the Finance function at NeuStar. His knowledge of the company and executive strengths are exceptional. We are fortunate to have him on the leadership team."

Neustar Inc. (NYSE: NSR)