FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Tulchinsky Alex   2. Issuer Name and Ticker or Trading Symbol NEUSTAR INC [NSR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP (Last) (First) (Middle) 21575 RIDGETOP CIRCLE 3. Date of Earliest Transaction (Month/Day/Year) 03/30/2011 (Street) STERLING, VA 20166 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 03/30/2011   M   3,546 A $ 15.39 18,451 (1) D   Class A Common Stock 03/30/2011   S   3,546 D $ 25.42 (2) 14,905 D   Class A Common Stock 04/01/2011   M   3,546 A $ 15.39 18,451 D   Class A Common Stock 04/01/2011   S   3,546 D $ 25.48 14,905 (1) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Options

$ 15.39

03/30/2011

M

3,546

(3)

02/23/2016

Class A Common Stock

3,546

$ 0

33,154

D

Employee Stock Options

$ 15.39

04/01/2011

M

3,546

(4)

02/23/2016

Class A Common Stock

3,546

$ 0

29,608

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Tulchinsky Alex 21575 RIDGETOP CIRCLE STERLING, VA 20166			SVP

Signatures

/s/ Martin K. Lowen, by power of attorney		04/01/2011
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes shares that are subject to restricted stock agreements under the NeuStar, Inc. 2005 Stock Incentive Plan and the NeuStar, Inc. 2009 Stock Incentive Plan.
(2)	This transaction was executed in multiple trades at prices ranging from $25.39 to $25.65. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(3)	19,120 options are immediately exercisable with the remaining options vesting in monthly installments through February 2013.
(4)	15,574 options are immediately exercisable with the remaining options vesting in monthly installments through February 2013.
Remarks: ***All of the sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.***

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