X0202 4 2008-05-15 0 0001265888 NEUSTAR INC NSR 0001325202 BABKA JEFFREY 46000 CENTER OAK PLAZA STERLING VA 20166 0 1 0 0 Sr. VP and CFO Class A Common Stock 2008-05-15 4 S 0 200 24.415 D 130200 D Class A Common Stock 2008-05-15 4 S 0 2100 24.42 D 128100 D Class A Common Stock 2008-05-15 4 S 0 3500 24.43 D 124600 D Class A Common Stock 2008-05-15 4 S 0 3200 24.44 D 121400 D Class A Common Stock 2008-05-15 4 S 0 3400 24.45 D 118000 D Class A Common Stock 2008-05-15 4 S 0 700 24.46 D 117300 D Class A Common Stock 2008-05-15 4 S 0 4900 24.47 D 112400 D Class A Common Stock 2008-05-15 4 S 0 3800 24.48 D 108600 D Class A Common Stock 2008-05-15 4 S 0 400 24.485 D 108200 D Class A Common Stock 2008-05-15 4 S 0 16200 24.49 D 92000 D Class A Common Stock 2008-05-15 4 S 0 2000 24.495 D 90000 D Class A Common Stock 2008-05-15 4 S 0 53200 24.50 D 36800 D Class A Common Stock 2008-05-15 4 S 0 300 24.505 D 36500 D Class A Common Stock 2008-05-15 4 S 0 2800 24.51 D 33700 D Class A Common Stock 2008-05-15 4 S 0 900 24.52 D 32800 D Class A Common Stock 2008-05-15 4 S 0 900 24.53 D 31900 D Class A Common Stock 2008-05-15 4 S 0 1000 24.54 D 30900 D Class A Common Stock 2008-05-15 4 S 0 200 24.55 D 30700 D Class A Common Stock 2008-05-15 4 S 0 800 24.56 D 29900 D Includes 1,700 shares that are subject to a restricted stock agreement under the NeuStar, Inc. 2005 Stock Incentive Plan, which provides that twenty-five percent of the shares vest on each of February 22, 2007, 2008, 2009 and 2010. Form 4 Filing 2 of 2 (continuation report): Related transasctions effected by the Reporting Person on May 15, 2008 are reported on additional Forms 4. /s/ Martin K. Lowen, by power of attorney 2008-05-16