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Exhibit 10.4.4
 
 AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT1. CONTRACT ID CODE Page
1 of 2 2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE U. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO.
(If applicable) 0016 07/09/2007 6. ISSUED BY            CODE 00001 7. ADMINISTERED BY (It other than Item 6)CODE FCC /Contracts and
Purchasing Center 445 12th
St., SW, Washington, DC
20554 8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and Zip Code)9A-
AMENDMENT OF SOLICITATION NO. 9B. DATED (SEE ITEM 11)Neustar, Inc.. 46000 Center Oak Plaza            T 10A. MODIFICATION OF CONTRACT/ORDER
NO. CON03000016
Sterling, VA 20166 i0B. DATED (SEE ITEM 13) CODE * FACILITY CODE 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
is extended, I            I 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 8 and 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. (2, 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: D. OTHER (Specify type of modification and authority) FAR 1.6 Authority of the Contracting Officer, FAR 43.103(a)(3), Mutual Agreement E. IMPORTANT: Contractor            is not, is required to sign this document and return J
copies to the issuing office. 1.4. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including
solicitation/contract subject matter where feasible.)
the purpose of this modification is to exercise Option Year 4. The Period of Performance is
from 7/9/2007 through 7/8/2008. Option Period 4 pricing is in accordance with Contract Section
B. Pricing as follows: Option            Year 4 Qty/Unit            Unit Price XXX
Description            XXX            XXX
Automated System Support            XXX XXX XXX XXX XXX            XXX XXX
(operation & maintenance) XXX XXX
NANP Administration
Reporting
Travel, Not To Exceed Amount
Data Requirements (CDRLs)
Transition
TotalOption Year 4 CLIN 0401 0402 Amount Set at
$ 133,789.00
$1,048,966.00 $
147,800.00 $
28,346.00 $
49,760.00
$41,679.00
$1,450,340.00
 0403 0404 0405 0406 Except as provided herein, all terms and conditions of the document referenced in Item 9A or
10A. as heretofore changed, remains unchanged and in lull force and effect. 15A. NAME AND TITLE OF S\GNER (Type or print)16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)
Anthony Wimbush
15C. DATE SIGNED 16B. Uytted States of America 16C. DATE SIGNED Signature of person authorized to sign} (Signature oDpontracting Officer)
07/09/20070ln1STANDARD FORM 30 (REV. 10-83) Prescribed by GSA FAR (48 CFR) UNUSABLE 53.243




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Line ItemDocument NumberTitle            Page
SummaryCON030000I6/00I6NANP Administrator 2 of 2
Line Item Delivery Date Unitof
Number            Description (Start date to End date) Quantity            Issue            Unit Price            Total Cost (Questions may be addressed to Tony Wimbush @anthony.wimbush@fcc.gov. No Changed Line Item Fields if            Previous Total:
Modification Total: Grand Total:




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AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
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Line Item Summary
 Document Number
  Title
  Page
  Line Item Number
 Description
 Delivery Date (Start date to End date)
 Quantity
 Unit of Issue
 Unit Price
 Total Cost
   Previous Total:
 Modification Total:
 Grand Total:




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(NEUSTAR LOGO)
 NANP Administration Services
 Scope of Work Change Proposal # 12
 Replacement of NANP Administration
 System (NAS) Servers
    NeuStar, Inc.
    
    46000 Center Oak Plaza
Sterling, VA 20166




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NANPA  Scope of Work Change #12 Proposal          NANPA Recommendation
 Table of Contents
 1
    
    Introduction
    
    
    11.1
    Purpose and Scope
    
    
    11.2
    Modification of the NANPA System
    
    
    12
    
    NANPA Recommended Scope of Work Change
    
    
    23
    
    NeuStars Proposed Solution
    
    
    24
    
    Assumptions and Risks
    
    
    35
    
    Cost Assumptions and Summary
    
    
    36
    
    Conclusion
    
    
    3
 
 © NeuStar, Inc. 2007
    
    
    

    iii




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NANPA  Scope of Work Change #12 Proposal  NANPA Recommendation
 1
    
    Introduction
 1.1
    
    Purpose and Scope
 1
 If and when a change to the NANPA system is adopted by the NANC or the INC, the
contractors liaison shall ensure that the proposed change is forwarded to the Contracting
Officer and the Contracting Officers Technical Representative (COTR). No change shall be
binding until such modification is issued, nor shall the Government be liable for any costs
associated with a system change until such modification is issued.
 1.2
    
    Modification of the NANPA System
  1.
    
    Either the contractor, the NANC, the INC or the FCC may identify a need for change to
the NANPA system.2.
    
    All parties may discuss the needed change and address possible solutions.3.
    
    The NANC, the INC or the FCC may request the contractor to propose a solution to
affect the change. The contractor shall develop a solution and alternatives if feasible,
and associated cost of each solution. The contractor shall submit the proposal(s) and
associated cost information to the NANC for review.4.
    
    The NANC may adopt one of the proposed changes or return the proposal to the
contractor for further development/clarification.5.
    
    If and when a change to the NANPA system is adopted by the NANC or the INC, the
contractors liaison shall ensure that the proposed change is forwarded to the Contracting
Officer and the Contracting Officers Technical Representative (COTR). No change shall be
binding until such modification is issued, nor shall the Government be liable for any
costs associated with a system change until such modification is issued.
 
 1
    
    Contract Number CON03000016 and the NANPA Technical Requirements Document, March 2003. © NeuStar, Inc. 2007
    
    
    

    1




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NANPA  Scope of Work Change #12 Proposal  NANPA Recommendation
 2
 2
    
    NANPA Recommended Scope of Work Change
   3
    
    NeuStars Proposed Solution
    
 2
    
    Letter dated June 5, 2007 from John C. Manning, Director, NANPA, to Anthony Wimbush, Contracting
Officer, Contracts and Purchasing Center, FCC and Gary Remondino, Contracting Officer  Technical
Representative, Contracts and Purchasing Center. FCC. © NeuStar, Inc. 2007
    
    
    

    2




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NANPA  Scope of Work Change #12 Proposal  NANPA Recommendation
 4
    
    Assumptions and Risks
  Assumption:
 
    
    When replacing these servers, NeuStar will select a time frame that minimizes any potential
risk of interfering with the submission of utilization and forecast data collected via the
NRUF reporting process. This would include replacing the servers outside of the heaviest NRUF
submission time frame, which occurs the weeks surrounding the FCC filing deadline of February
1 and August 1 of each year.
    
    All four replacement servers come with a three year maintenance agreement along with
24x7x365 support.
 Risk:
 
    
    Potential errors could occur when transferring operating software and system files/data to
the new servers. This risk is mitigated however by the fact that NeuStar successfully upgraded
all NAS operating software in March 2007 with no service disruption and support personnel involved in that activity will be directly involved in the replacement of the servers.
 5
    
    Cost Assumptions and Summary
  6
    
    Conclusion
  © NeuStar, Inc. 2007
    
    
    

    3




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NANP Administration Services
Scope of Work Change Proposal # 13
 INC Issue 545: Removal of Switch CLLI Information from
NANPA Website
  NeuStar, Inc.
    
    46000 Center Oak PlazaSterling, VA 20166




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Table of Contents
 1     Introduction
    
    
    11.1     Purpose and Scope
    
    
    11.2     Modification of Guidelines
    
    
    12     Proposed Industry Numbering Committee (INC) Scope of Work Change
    
    
    23     Neustars Proposed Sollution
    
    
    34     Assumptions and Risks
    
    
    45     Cost of Assumption and Summary
    
    
    56     Conclusion
    
    
    5
 NeuStar, INC. 2007
    
    iii




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1 Introduction
 1.1 Purpose and Scope
 1
  1.2 Modification of Guidelines
  2
  
 1
    
    Contract Number CON03000016 and the NANPA Technical Requirements Document, March
2003.2
    
    NANPA Technical Requirements Document, March 2003, Section 2.10, Modification of
Guidelines. NeuStar, INC. 2007
    
    1




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2
    
    Proposed Industry Numbering Committee (INC) Scope of Work Change
  
    
    Issue 545: Removal of Switch CLLI Information from NANPA Website
  A)
    
    ISSUE STATEMENT
   B)
    
    FOLLOWING RESOLUTION FROM INC
   3.3
    
    Information that is submitted by applicants in support of code assignment shall be kept to
a minimum, be uniform for all applicants, and be treated as proprietary and adequately safeguarded
by the PA/NANPA. Switch CLLI information shall not be placed on the NANPA website but shall be
retained by the PA/NANPA. The Switch CLLI information will continue to be available to those
Service Providers and appropriate state and governmental regulatory authorities who have
registered for access to the PA/NANPA secured systems. If an appropriate state and governmental
regulatory authority has not registered for access to the PA/NANPA secured systems, this
information shall be made available upon request. Information required by Telcordia Business
Integrated Rating and Routing Database System (BIRRDS), Telcordia TPM Data Source3, and
information available in the LERG Routing Guide may be subject to licensing agreements with
Telcordia.
 
 3
    
    TPM Data Source is a trademark of Telcordia Technologies, Inc. NeuStar, INC. 2007
    
    2




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
  3.4
    
    Information that is submitted by applicants in support of thousands-block assignment
shall be kept to a minimum, be uniform for all applicants, and be treated as proprietary and
adequately safeguarded by the PA/NANPA. Switch CLLI information shall not be placed on
the NANPA website but shall be retained by the PA/NANPA. The Switch CLLI information will
continue to be available to those parties that have registered for access to the PA/NANPA
secured systems. If an appropriate state and governmental regulatory authority has not
registered for access to the PA/NANPA secured systems, this information shall be made
available upon request. Information required by Telcordia Business Integrated Rating
and Routing Database System (BIRRDS), Telcordia TPM Data Source,4 and
information available in the LERG Routing Guide may be subject to licensing agreements with
Telcordia.NOTE: Implementation of this resolution may be delayed until the outcome of a
potential NANPA Change Order is known.5
 3 NeuStars Proposed Solution
     
 4
    
    TPM Data Source is a trademark of Telcordia Technologies, Inc.5
    
    INC Issue 545: Removal of Switch CLLI Information from NANPA Website NeuStar, INC. 2007
    
    3




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
  Switch ID,
  4 Assumptions and Risks
  Assumptions:
 
    
    NANPA assumes that service providers6 desiring the Switch CLLI information will
be required to register in NAS. Any request for NANPA to provide this data to a service
provider in any other manner will be treated as a NANPA Customized Report Enterprise
Service.
    
    All service providers that have selected the Central Office Code Administration function in
their NAS profile, along with federal and state registered NAS users, will have access to the
Central Office Code Utilized Report and the Central Office Code Assignment Records found in the
password-protected side of NAS. These users will be able to access the Switch CLLI information for
all states and associated NPA-NXXs resident in NAS.
    
    Service providers will continue to submit a Central Office Code (NXX) Assignment Request (Part
1) whenever there is a change to the Switch CLLI associated with an assigned central office code.
Further, NANPA will continue to distribute the daily, weekly and monthly Part 1 Report to
authorized states. This report will include, among other data, the Switch CLLI information for
those NPA-NXXs included on the Part 1 Report.
 
 6
    
    Service providers include service provider consultants. NeuStar, INC. 2007
    
    4




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
 Risks:
 
    
    It is important to note that NANPA is aware of entities that use the NANPA website and
specifically, the reports available concerning central office codes assignments for their business
purposes. Removing the Switch CLLI information may result in feedback concerning the availability
of this information. Some of these entities may request access to secure NAS in order to obtain
this information when in fact they do not qualify under current NAS access procedures to become
NAS users. These entities may contact the NANPA and/or the FCC to express their concerns regarding
this change to the NANPA public website.
 5 Cost Assumptions and Summary
  6 Conclusion
  NeuStar, INC. 2007
    
    5




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(NEUSTAR LOGO)
 NANP Administration Services
 Scope of Work Change Proposal # 14
 INC Issue 526  Edit COCAG Regarding Disconnect of
NXXs in Telcordia BIRRDS
  NeuStar, Inc.
    
    46000 Center Oak Plaza
Sterling, VA 20166




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
 Table of Contents
 1
    
    Introduction
    
    
    11.1
    Purpose and Scope
    
    
    11.2
    Modification of Guidelines
    
    
    12
    
    Proposed Industry Numbering Committee (INC) Scope of Work Change
    
    
    23
    
    NeuStars Proposed Solution
    
    
    44
    
    Assumptions and Risks
    
    
    55
    
    Cost Assumptions and Summary
    
    
    56
    
    Conclusion
    
    
    6
 © NeuStar, Inc. 2007
    
    
    

    iii




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
 1
    
    Introduction
 1.1
    
    Purpose and Scope
 1
  1.2
    
    Modification of Guidelines
  2
  
 1
    
    Contract Number CON03000016 and the NANPA Technical Requirements
Document, March 2003.2
    
    NANPA Technical Requirements Document, March 2003, Section 2.10,
Modification of Guidelines. © NeuStar, Inc. 2007
    
    
    

    1




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
 2
    
    Proposed Industry Numbering Committee (INC) Scope of Work Change
  
    
    Issue 526: Edit COCAG Regarding Disconnect of NXXs in Telcordia BIRRDS
  A)
    
    ISSUE STA TEMENT
  B)
    
    FOLLOWING RESOLUTION FROM INC
  Section 5.2.9Ensure, concurrent with assignment or disconnect of an NXX to a code applicant, the
NPA, NXX. effective date and OCN of the code applicant are input into BIRRDS to
indicate that a specific NXX has been assigned by NANPA to an applicant or that
a disconnect has been approved by NANPA. Completion of this step will allow the input
of Part 2 data entries into BIRRDS that may or may not be performed by the CO Code
Administrator (See Code Activation and In Service Timeline in Appendix D, II).
 Section 6.1.2.1
 b)   The expedited 45-day Interval activities:
 
    
    The SP must follow the Network Interconnection and Interoperability
Forum (NIIF) procedures to expedite the 45-day code activation
process.
    
    On an exception basis, an activation interval of less than 45
calendar days may be requested on the Part 1. Under no circumstances will an
activation interval of less than 30 calendar days be approved by the homing tandem
operating company or the NANPA.
    
    To open a new code, the Part 1 must be accompanied by
documentation from the homing tandem operating company that the shorter
interval can be met.
    
    To modify or disconnect an existing code, NANPA may have a direct
role such as entering changes to data on the BIRRDS ACD screen. For
disconnects. NANPA
 
 3
    
    For more information, refer to the latest issue of NIIF-008 Recommended
Notification Procedures to Industry for Changes in Access Network
Architecture. © NeuStar, Inc. 2007
    
    
    

    2




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
 has the direct role of entering the effective date of the disconnect on
the ACD screen, If an expedite is approved, the expedite information will be entered
in theBIRRDS ACD screen as well. When NANPA has a direct
role, NANPA has the discretion to grant an expedite without concurrence from the
homing tandem operating company. Under no circumstances will a modification or
disconnect interval of less than 30 days be approved by the NANPA.
 Section 6.6.1For any non-pooledCentral Office Codes returned to NANPA in error, one of
the following scenarios and steps applies and should be taken:
 
    
    Scenario 1: The Part 3 has not yet been issued.
 
    
    The SP should cancel the return in NAS.
 
    
    Scenario 2: The Part 3 has been issued and the code return was approved and
the effective date has not yet been reached.
 
    
    The SP must notify the NANPA Code Administrator to cancel the
return in NAS, in order to cancel the disconnect on the ACD
in BIRRDS.
    
    The SP must take the appropriate steps to cancel the disconnect
view on the NXD in BIRRDS.
    
    It is recommended that the SP contact the TRA to negotiate the
issuance of an Emergency Notification.
 Section 6.6.2For any pooledCentral Office Codes returned to the PA in error, if one of the following
scenarios applies, the corresponding step(s) should be taken:
 
    
    Scenario 1: The Part 3 has not yet been issued by NANPA.
 
    
    The SP must notify the PA and
NANPA via email in order to cancel the return.
 
    
    Scenario 2: The Part 3 has been issued and the code
return was approved and the effective date has not yet been reached.
 
    
    The SP must notify the PA and NANPA to cancel the return in PAS and
NAS in order for NANPA to cancel the disconnect on the ACD in
BIRRDS.
    
    The SP must take the appropriate steps to cancel the disconnect view
on the NXD in BIRRDS.
    
    It is recommended that the SP contact the TRA to negotiate the issuance of an Emergency Notification.
 Appendix CSection 2.2The SP returning an NXX code, shall submit its Part 1 disconnect request to NANPA.
NANPA shall create a disconnect view on the ACD screen in BIRRDS if NANPA determines
that there are no active or pending ports within the code being returned. An
 © NeuStar, Inc. 2007
    
    
    

    3




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
 edit has been placed in BIRRDS to prevent SPs from entering a disconnect in
BIRRDS prior to NANPA entering a disconnect on the ACD screen. This is to ensure that the
code is not removed from the LERG Routing Guide as an active code until the Part 3 with the
effective date of the disconnect is received from NANPA, and to prevent an adverse effect
on ported-out customers.
 Appendix CSection 4.4.1If there are no active or pending ports, including intra-SP ports,on the pooled NXXcode,
NANPA shall proceed with the return. NANPA shall create the disconnect on the ACD
screen in BIRRDS, and the SP returning the pooled NXX, subsequently shall enter the
disconnect on the NXD screen in BIRRDS. An edit in BIRRDS ensures that the disconnect
effective date on the NXD screen matches the disconnect effective date on the ACD screen.
Delays in entering the disconnect on the NXD screen in BIRRDS may cause a later than
anticipated disconnect effective date on the NXX code due to the automatic rescheduling
mechanism in BIRRDS to preserve the industry notification timeframe.If there areactive or pending portson the pooled NXX code, NANPA shall:
 
    
    Deny the Part 1 application if the only active or pending ports
on the pooled NXX code are intra-SP ports. LERG assignees must remove all
intra-SP ports and LRNs from a pooled NXX code to be returned before submitting
a Part 1 to the PA.
    
    Suspend the Part 1 pending identification of a new LERG
assignee by the PA and so inform the applicant via a Part 3. NANPA,
shall request the original LERG assignee to maintain default
routinguntil a new LERG Assignee is found. An edit in BIRRDS prevents the
original LERG Assignee from creating a disconnect view on the NXD screen in
BIRRDS prior to NANPA creating a disconnect on the ACD.
    
    Provide the PA with an ad hoc report from the NPAC that will
identify active and pending ports on the returned pooled NXX code.
 3
    
    NeuStars Proposed Solution
   © NeuStar, Inc. 2007
    
    
    

    4




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
   4
    
    Assumptions and Risks
  Assumptions:
 
    
    NANPA assumes BIRRDS access is readily available at the time of processing an
application returning a code.
 Risks:
 
    
    In those instances where the code holder desires to cancel a code disconnect, NANPA must rely
upon the cooperation of the code holder to properly update information in BIRRDS in a timely
manner. If the code holder does not cooperate, NANPA will spend a significant amount of time
attempting to get the code holder to input the necessary data to reverse a code disconnect,
taking time away from processing other applications.
    
    There are additional risks of inputting inaccuracies when updateing two databases. Due to
human error, different data could be entered into the two systems or only one system may be
updated.
 Impact on Operations:
  5
    
    Cost Assumptions and Summary
  © NeuStar, Inc. 2007
    
    
    

    5




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NANPA  Scope of Work Change #8 Proposal  INC Issue 526
  6
    
    Conclusion
  © NeuStar, Inc. 2007
    
    
    

    6