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NeuStar Prices Initial Public Offering of Class A Common Stock

June 29, 2005 - Washington /PRNewswire-FirstCall/ - NeuStar (NYSE: NSR) today announced that it has priced its initial public offering of 27,500,000 shares of its Class A common stock at $22.00 per share.

The shares are being offered by existing shareholders of the company. Underwriters have an option to purchase up to an additional 4,125,000 shares from existing shareholders, including certain members of management, within 30 days.

NeuStar's common stock will trade on the New York Stock Exchange under the symbol "NSR" as of June 29, 2005.

Morgan Stanley & Co., Inc., Credit Suisse First Boston, LLC and J.P. Morgan Securities, Inc., acted as joint book-running managers. Banc of America Securities, LLC also acted as co-lead manager.

A final prospectus of the offering may be obtained from Morgan Stanley by emailing, or by contacting the prospectus department at Morgan Stanley & Co. Inc., 1585 Broadway, New York, NY 10036, telephone (212)761-6775.

About NeuStar, Inc.

NeuStar is a provider of essential clearinghouse services to the North American communications industry and Internet service providers around the world. Visit NeuStar online at .