X0202 4 2006-07-03 0 0001265888 NEUSTAR INC NSR 0001325198 MALONE JOHN 46000 CENTER OAK PLAZA STERLING VA 20166 0 1 0 0 Sr. VP, Sales and Bus. Dev Class A Common Stock 2006-07-03 4 M 0 25500 4.286 A 82980 D Class A Common Stock 2006-07-03 4 S 0 500 31.45 D 82480 D Class A Common Stock 2006-07-03 4 S 0 100 31.50 D 82380 D Class A Common Stock 2006-07-03 4 S 0 1200 31.51 D 81180 D Class A Common Stock 2006-07-03 4 S 0 500 31.52 D 80680 D Class A Common Stock 2006-07-03 4 S 0 100 31.60 D 80580 D Class A Common Stock 2006-07-03 4 S 0 100 31.61 D 80480 D Class A Common Stock 2006-07-03 4 S 0 100 31.62 D 80380 D Class A Common Stock 2006-07-03 4 S 0 800 31.65 D 79580 D Class A Common Stock 2006-07-03 4 S 0 200 31.66 D 79380 D Class A Common Stock 2006-07-03 4 S 0 400 31.68 D 78980 D Class A Common Stock 2006-07-03 4 S 0 100 31.69 D 78880 D Class A Common Stock 2006-07-03 4 S 0 700 31.70 D 78180 D Class A Common Stock 2006-07-03 4 S 0 200 31.71 D 77980 D Class A Common Stock 2006-07-03 4 S 0 400 31.72 D 77580 D Class A Common Stock 2006-07-03 4 S 0 800 31.74 D 76780 D Class A Common Stock 2006-07-03 4 S 0 600 31.75 D 76180 D Class A Common Stock 2006-07-03 4 S 0 300 31.76 D 75880 D Class A Common Stock 2006-07-03 4 S 0 1100 31.77 D 74780 D Class A Common Stock 2006-07-03 4 S 0 500 31.78 D 74280 D Class A Common Stock 2006-07-03 4 S 0 300 31.79 D 73980 D Class A Common Stock 2006-07-03 4 S 0 400 31.80 D 73580 D Class A Common Stock 2006-07-03 4 S 0 600 31.81 D 72980 D Class A Common Stock 2006-07-03 4 S 0 100 31.82 D 72880 D Class A Common Stock 2006-07-03 4 S 0 100 31.85 D 72780 D Class A Common Stock 2006-07-03 4 S 0 100 31.86 D 72680 D Class A Common Stock 2006-07-03 4 S 0 100 31.94 D 72580 D Employee Stock Option 4.286 2006-07-03 4 M 0 25500 0.00 D 2013-01-16 Class A Common Stock 25500 58383 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. Immediately. Form 4 Filing 1 of 2 (continuation report): Related transactions effected by the Reporting Person on July 3, 2006 are reported on additional Forms 4. ***All of the sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.*** /s/ Martin Lowen, by power of attorney 2006-07-06