AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT  1 CONTRACT ID CODE
 Page 1 of 2 2. AMENDMENT/MODIFICATION NO 0025
 3. EFFECTIVE DATE 01/09/2009 4.REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (if applicable)  6. ISSUED BY
 FCC /Contracts and Purchasing Center 445 12th St., SW. Washington, DC 20554 CODE 00001 7. ADMINISTERED BY (if other than Item 6)CODE  8. NAME
AND ADDRESS OF CONTRACTOR (No., street, county, State and Zip Code) Neustar, Inc. 46000 Center Oak Plaza Sterling, VA 20166 (X) 9A. AMENDMENT OF SOLICITATION NO. 9B. DATED (SEE ITEM 11) (X)10A. MODIFICATION OF CONTRACT/ORDER NO. CON03000016
 CODE FACILITY CODE (X) 10B. DATED (SEE ITEM 13) 11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers 1is extended, is not extended Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By
completing Items 8and 15, and returning copies of the amendment; (b) By acknowledging
receipt of this amendment on each copy of the offer submitted: or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter,
provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified. 12. ACCOUNTING AND APPROPRIATION DATA
(if required)No Funding Information



 13. THIS ITEM
ONLY APPLIES TO MODIFICATION OF
CONTRACTS/ORDERS, IT MODIFIES THE
CONTRACT/ORDER NO-AS DESCRIBED IN ITEM
14.



 CHECK ONE



 A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14
ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.



 B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE
ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation
date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF
FAR 43.103(b).



 C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:



 43.103(a).
Mutual Agreement; FAR 1.6, Authority of the Contracting Officer

 D. OTHER (Specify type of modification and authority)



 E.
IMPORTANT: Contractor            is not, is required to sign this document and return 1 copies to
the issuing office.



 14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including
solicitation/contract subject matter where feasible.)The purpose of this contract modification is
two-fold as follows: 1. To incorporate NeuStar, Inc.s proposal of 10/30/08 as amended 12/17/08 to
provide for additional network gear in support of continued contract performance in accordance with
the following schedule: A. Two (2) Cisco 2821 Routers with one (1) year maintenance: $6,620.00; B.
Two (2) Cisco 2960-48 Switches with one (1) year maintenance: $3,100.00; and C. Two (2) Load
Balances with one (1) year maintenance: $34,360.00. The total price of these items is $44,080.00;
and 2. This contract modification also serves to extend the contract period of performance for an
additional six (6) months from January 9, 2009 through July 8, 2009 at a total price of $747,800.00
(inclusive of $20,000.00 for travel). NeuStar, Incs proposal of 12/09/08 is hereby incorporated
into the contract. Funding will be via NANP funding and will be paid by FCC Billing & Collection
Agent. Welch, LLP. The total price of this contract modification is $791,880.00.



 Except as provided herein, all terms and conditions of the document referenced in Item 9A or
10A. as heretofore changed, remains unchanged and in full force and effect.



 15A. NAME AND TITLE OF SIGNER (Type or print)



 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)Anthony Wimbush



 15B.
CONTRACTOR/OFFEROR
Micheal O.C
(Signature of person authorized to sign)


 15C.
DATE SIGNED 7 JAN 09



 16B. United States of America



 16C. DATE SIGNED



 BY



 (Signature of Contracting Officer)



 NSN 7540-01-152-8070 PREVIOUS EDITION UNUSABLE



 STANDARD FORM 30 (REV 10-83)
Prescribed by GSA FAR (48 CFR)
53 243




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Line ItemDocument NumberTitle            Page 2 of 2
SummaryCON03000016/0025NANP Administrator



 Line Item Delivery Date            Unit of
Number            Description(Start date to End date) QuantityIssue            Unit Price            Total Cost



 Questions may be addressed to Tony Wimbush@ anthony. wimbush@fcc.gov.



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