SIXTH AMENDMENT TO COMMON SHORT CODE LICENSE AGREEMENT

Exhibit 10.98

SIXTH AMENDMENT TO
COMMON SHORT CODE LICENSE AGREEMENT

     This Sixth Amendment (“Sixth Amendment”), to the Common Short Code License Agreement dated October 17, 2003, is effective on the 18th day of April, 2008 between NeuStar, Inc., a Delaware corporation, with offices located at 46000 Center Oak Plaza, Building X, Sterling, VA 20166 (“NeuStar”), and the Cellular Telecommunications and Internet Association (“CTIA”), a District of Columbia non-profit corporation, located at 1400 16^th Street, NW, Suite 600, Washington, DC 20036,

     WHEREAS, NeuStar and CTIA entered into a Common Short Code License Agreement (the “License Agreement”), dated October 17,2003;

     WHEREAS, NeuStar and CTIA are in the first Renewal Term after the Initial Term contemplated by Section 3.2 of the License Agreement. The current Renewal Term ends on April 21, 2008, with the next Renewal Term scheduled to begin immediately thereafter;

     WHEREAS, NeuStar and CTIA currently are negotiating over certain terms and conditions of the License Agreement, and believe an extension to the current term will allow these negotiations to proceed more productively;

     WHEREAS, both CTIA and Neustar represent and warrant that the purpose of this Amendment is to allow additional time for negotiations between the parties and that it will not be used as evidence against the other party in any manner in any dispute or proceeding relating to the License Agreement, and both NeuStar and CTIA rely on such representations in executing this Amendment;

     NOW, THEREFORE, in consideration of the mutual covenants contained herein and other good and valuable consideration, receipt of which is hereby acknowledged, the parties agree as follows:

1. Defined Terms. Terms used but not defined in this Sixth Amendment will have the meanings set forth in the License Agreement. The recitals made above are incorporated by reference in this Sixth Amendment as if fully set forth herein.

2. Extension of Current Term. The Parties agree to extend the current Renewal Term until May 30, 2008. The length of the subsequent Renewal Term will be reduced by the length of the extension of the current Renewal Term, with the result that the Sixth Amendment will not change the April 21, 2010 end date for the subsequent Renewal Term.

3. No Waiver of Rights. This Amendment shall not waive, limit or otherwise impair any rights, remedies or obligations of the parties, and shall not be used or considered in any manner by one party against the other in any dispute, arbitration, court of law or other proceedings relating to the License Agreement. Specifically, but without limitation, this Amendment and its provisions shall not be used by either party for the following purposes: i) to interpret the License Agreement in any way; ii) to support or oppose an established or claimed course of dealing between the parties; iii) to support or oppose a disputed fact or legal position; iv) to support or oppose subsequent actions by the parties in negotiations, dispute processes, courts of law, media and public outlets or arbitrations.

5. No Other Changes. Except as specifically modified by this Sixth Amendment (and the prior five (5) amendments), the terms and conditions of the License Agreement remain the same.

     IN WITNESS WHEREOF, the parties have caused this Sixth Amendment to be duly executed as of the date first written above.

NEUSTAR, INC				CTIA
By: Name:		/s/ Steve M. Boyce   Steve M. Boyce		By: Name:		/s/ Michael F. Altschul   Michael F. Altschul
Title:		VP and Corporate Controller		Title:		Senior Vice President and General Counsel
Date		4/18/08		Date: