Exhibit 10.1.3
  
    
    LNP, LLC (Midwest)
    
    Southwest Region Portability Company, LLC
    
    Western Region Telephone Number Portability, LLC
    
    Southeast Number Portability Administration Company, LLC
    
    Mid-Atlantic Carrier Acquisition Company, LLC
    
    West Coast Portability Services, LLC
 Amendment No. 72 (NE)
 SOW:
    
    o Noþ Yes
 
 STATEMENT OF WORK NO. 72
 UNDER
 CONTRACTOR SERVICES AGREEMENT
 FOR
 NUMBER PORTABILITY ADMINISTRATION CENTER / SERVICE
 MANAGEMENT SYSTEM
 IMPLEMENTATION OF NANC 429, NANC 430 AND NANC 435
 CONFIDENTIAL
 Page 1




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o  Noþ Yes
 STATEMENT OF WORK NO. 72
 UNDER
 CONTRACTOR SERVICES AGREEMENT
FOR
NUMBER PORTABILITY ADMINISTRATION CENTER/SERVICE MANAGEMENT
SYSTEM
 Implementation of NANC 429, NANC 430 AND NANC 435
 1. PARTIES
 Statement of Work SOW Master Agreement Master Agreements Contractor Customer Subscribing Customer
 2. EFFECTIVENESS AND SUBSCRIBING CUSTOMERS
 SOW
Effective Date  Subscribing Customers
 
    
    Mid-Atlantic Carrier Acquisition Company, LLC
    
    LNP, LLC (Midwest)
    
    Northeast Carrier Acquisition Company, LLC
    
    Southeast Number Portability Administration Company, LLC
    
    Southwest Region Portability Company, LLC
    
    West Coast Portability Services, LLC
    
    Western Region Telephone Number Portability, LLC
  3. CONSIDERATION RECITAL
  CONFIDENTIAL
 Page 2




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o Noþ Yes
  4. SCOPE OF ADDITIONAL SERVICES
 Software
Development Work
 Software Development Work
  Change Orders
 Change Orders
 NANC 429  URI for Voice.
 NANC 430  URI for Multimedia Message Service (MMS).
 NANC 435  URI for Short Message Service (SMS).
 CONFIDENTIAL
 Page 3




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o  Noþ  Yes
 5. OUT OF SCOPE SERVICES
 Out of Scope Services
 6. PROJECT PHASES
 Phase Descriptions
 Project
Phases
 Table 1  Project Phases
 Phases
    
    DescriptionsPhase 0
    
    SOW Effective DatePhase 1
    
    Development of EnhancementPhase 2
    
    Availability of Enhancement for Optional
Regression Testing and, for Users supporting
the Enhancement, Turn-Up Testing on
Industry Test BedPhase 3
    
    Implementation of Enhancement
 Phase 1
 Phase 2
 Phase 3 SOW
Completion Date.
 Acceptance
  CONFIDENTIAL
 Page 4




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o  Noþ  Yes
 Acceptance Critical
Defect
 7. APPLICABLE DOCUMENTS
  ü
    
    Functional Requirements SpecificationsNone
    
    Requirements Traceability MatrixNone
    
    System Designü
    
    Detailed DesignNone
    
    Integration Test PlanNone
    
    System Test PlanNone
    
    NPAC Software Development Process Planü
    
    User Documentation
  8. IMPACTS ON MASTER AGREEMENT
 None
    
    Master Agreementü
    
    Exhibit B Functional Requirements Specificationü
    
    Exhibit C Interoperable Interface Specificationü
    
    Exhibit E Pricing SchedulesNone
    
    Exhibit F Project Plan and Test ScheduleNone
    
    Exhibit G Service Level RequirementsNone
    
    Exhibit H Reporting and Monitoring RequirementsNone
    
    Exhibit J User Agreement FormNone
    
    Exhibit K External DesignNone
    
    Exhibit L Infrastructure/HardwareNone
    
    Exhibit M Software Escrow AgreementNone
    
    Exhibit N System Performance Plan for NPAC/SMS ServicesNone
    
    Disaster RecoveryNone
    
    Back Up PlansNone
    
    Gateway Evaluation Process (Article 32 of Master Agreement)
 CONFIDENTIAL
 Page 5




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o  Noþ  Yes
 9. APPROVAL OF NEW URI PARAMETERS
  
    
    URI for Voice
    
    URI for Multimedia Message Service (MMS)
    
    URI for Short Message Service (SMS)
 Corrective Transactions
 10. COMPENSATION AND PAYMENT
  11. MISCELLANEOUS
  CONFIDENTIAL
 Page 6




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##### 



Amendment No. 72 (NE)
 SOW:
    
    o  Noþ  Yes
      [THIS SPACE INTENTIONALLY LEFT BLANK]
 CONFIDENTIAL
 Page 7




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##### 



Statement
of Work  No. 72 (NE)
 SOW:
    
    o  Noþ  Yes
  CONTRACTOR:
NeuStar, Inc.
 By:
    
    /s/ Michael OConnorIts:
    
    VP Customer RelationDate: May 20, 2009
 CUSTOMER: North American Portability Management LLC, as successor in interest to and on behalf of
Northeast Carrier Acquisition Company, LLC
 By:
    
    /s/ Melvin ClayIts:
    
    NAPM LLC Co-ChairDate: May 20, 2009
 By:
    
    /s/ Timothy DeckerIts:
    
    NAPM LLC Co-ChairDate: May 20, 2009
 CONFIDENTIAL
 Page 8




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##### 



Paul S. Lalljie
    
    Ph: 571-434-5548Senior Vice President, Chief Financial Officer and Treasurer
    
    Fax: 571-434-5735Paul.Lalljie@neustar.biz
  
 
 Change Orders
   Scheduled
    
    Actual
    
    Acceptance PeriodService Area
    
    Implementation Date
    
    Implementation Date
    
    ExpirationSoutheast
    
    June 28, 2009
    
    June 28, 2009
    
    July 13, 2009Mid-Atlantic
    
    July 12, 2009
    
    July 12, 2009
    
    July 27, 2009Midwest
    
    July 12, 2009
    
    July 12, 2009
    
    July 27, 2009Northeast
    
    July 12, 2009
    
    July 12, 2009
    
    July 27, 2009Southwest
    
    July 19, 2009
    
    TBD
    
    Est. August 3, 2009West Coast
    
    July 19, 2009
    
    TBD
    
    Est. August 3, 2009Western
    
    July 19, 2009
    
    TBD
    
    Est. August 3, 2009




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##### 




    
    NeuStar will waive for calendar month June, 2009 only criteria (B) (i.e., Contractor
implementation) and (C) (i.e., Customer acceptance) set forth in Section 35.5(b) of
each Master Agreement for determining whether a New URI Adjustment Event has
occurred with respect to any Service Area if in that same calendar month of June,
2009 at least one other Service Area has met criteria (A), (B), (D), (E) and (F) set
forth in Section 35.5(b) for determining whether a New URI Adjustment Event has
occurred.
    
    For any Service Area that in calendar month June 2009 meets, with respect to a
Covered New URI, criteria (A), (B), (D), (E) and (F) set forth in Section 35.5(b) of
each Master Agreement for determining whether a New URI Adjustment Event has
occurred, the NAPM LLC hereby Accepts under Section 6.2 of Statement of Work
No. 72, and effective the last date of June, 2009, NeuStars implementation of each
Change Order for such Covered New URI that NeuStar implemented in calendar
month June 2009.




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##### 



By:
Name:
    
    /s/ Mel Clay

Mel ClayTitle:
    
    Co-ChairBy: 
Name:
    
    /s/ Tim Decker

Tim DeckerTitle:
    
    Co-Chair
 cc:
    
    Dan A. Sciullo
Berenbaum, Weinshienk & Eason, P.C.