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Exhibit 10.7.1
 FOURTH
AMENDMENT TO  COMMON SHORT
CODE LICENSE AGREEMENT
 th
     CSC Version 2.04
 A.
    
    NeuStar shall, either itself, or in conjunction with other third parties,
implement CSC version 2.04, which shall include the additional features and
functionality set forth in Attachment 1, attached hereto (CSC 2.04).B.
    
    For purposes of the License Agreement, the features and functionalities set
forth CSC 2.04 shall be considered Enhancements as defined in Section 1.21 of the
License Agreement. Therefore, the New Registry Database Functionality shall be
considered Registry IP and owned exclusively by the Registry pursuant to Section 7.3
of the License Agreement.C.
    
    Notwithstanding the above, for the purposes of the License Agreement, the look
and feel of any Enhancements along with any CSC Data associated or related to CSC 2.04
shall be considered CSC Enhancements as defined in Section 1.16 of the License
Agreement. Therefore, the look and feel of CSC 2.04 and any related CSC Data
generated by such functionality shall be considered CSC Registry Rights and owned
exclusively by CTIA, on behalf of all Participating Carriers, pursuant to Section 7.1
of the License Agreement.
 CSC Monthly Billing.
 A.
    
    Registry Operator may offer the Monthly Billing program described in
Attachment 2 to this Amendment.




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B.
    
    The Parties acknowledge that such Monthly Billing program shall only be available
for CSCs leased for a period of twelve (12) months and all Registrants participating
in the Monthly Billing Program must comply with the terms and conditions set forth in
Attachment 2.
 Changes to Registrant Sublicense Agreement.
 A.
    
    The Parties agree to delete Exhibit B to the License Agreement and replace such
Exhibit with the new Exhibit B. attached hereto as Attachment 3 (RSA).B.
    
    In addition to the above, the Parties agree to allow Registry Operator to
distribute hard copy versions of the RSA upon request by a prospective Sublicensee. A
draft of the hard copy version of the RSA is attached hereto as
Attachment 4.
   NEUSTAR, INC
    
    
    
    CTIABy:
    
    /s/ Steve M. Boyce
    
    
    
    By:
    
    /s/ Michael F. AltschulName: Steve M. Boyce
    
    
    
    
    

Name:Michael F.
AltschulTitle: VP and Corporate Controller
    
    
    
    
    
    Title: Senior Vice President and General CounselDate: March 21, 2007
    
    
    
    
    
    Date: March 21, 2007




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ATTACHMENT NUMBER 1 TO THE
FOURTH AMENDMENT TO COMMON SHORT CODE LICENSE AGREEMENT
 CSC 2.04 FUNCTIONALITY
 Overview of Features
  A. CSC Optional Directory
  §
    
    Registry shall add a new section to the CSC Application that provides a high level
description of the opt-in directory and value proposition to the applicant/content
provider. The new section shall also reference via a hotlink the new Registrant Sublicense
Agreement which shall contain additional terms and conditions with regards to the CSC
Directory Service. A copy of the Registrant Sublicense Agreement is attached as Attachment
3 to the Fourth Amendment.§
    
    The Application Form shall also provide an Opt-in check-box for applicants to opt-in to
this directory. Only applicants that opt-in shall be eligible to participate in the CSC
Directory.§
    
    Link to additional information and a longer explanation of the opt-in directory program
  -
    
    CSC-
    
    Call to Action (eg. Text GQ to 47624)-
    
    Aggregator-
    
    Application Provider-
    
    Description




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B. Random CSC Selection Restrictions
    
    
    The CSC contains 4 or more sequential numbers anywhere in the
string (i.e., 81234).
    
    The CSC contains 2 repeating pairs anywhere in the string (i.e., 53753).
    
    The CSC contains 3 or more of the same digit in a row anywhere in
the string (i.e. 32000).
  
    
    The CSC contains 4 or more sequential numbers anywhere in the
string (i.e., 812347).
    
    The CSC contains 2 or more repeating pairs anywhere in the
string (i.e., 537531).
    
    The CSC contains 2 repeating triples in the string (i.e., 254254).
    
    The CSC contains 4 or more of the same digit in a row anywhere in
the string (i.e. 300006).
   C. New Search Logic
  1.
    
    Registry shall implement functionality to allow the end user to search which
CSCs are available for registration, including those CSCs that have been restricted
from the pool of available Random CSCs.2.
    
    Registry shall allow the following searches:
 i.
    
    Easy to Remember Codes. These are CSCs that
contain:
 o
    
    For 5 digit CSCs:
 §
    
    4 or more sequential numbers anywhere in the string (i.e., 81234)§
    
    5 reverse sequential numbers anywhere in the string§
    
    2 repeating consecutive pairs anywhere in the string (i.e., 53537).




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§
    
    3 or more of the same digit in a row at the beginning or end of the
string (i.e. 77775 or 57777).
 o
    
    For 6 digit CSCs:
 §
    
    6 sequential numbers.§
    
    6 reverse sequential numbers.
 o
    
    2 or more repeating pairs if the pair appears 3 times (i.e., 535353)
 §
    
    2 triples in the string where there are 2 sets of
sequential or nonsequtial repeating numbers (i.e., 444666 or 234234)§
    
    5 or 6 consecutive occurrences of the same number (i.e., 555556 or 555555)
 3.
    
    All search results shall be displayed similarly to the current search results
displayed to an applicant requesting to purchase a CSC directly from the search results
page upon user login.




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ATTACHMENT NUMBER 2 TO THE
FOURTH AMENDMENT TO COMMON SHORT
CODE LICENSE AGREEMENT
 MONTHLY BILLING PROMOTION
 CSCA RELEASE 2.05
 CSC REQUIREMENTS FOR MONTHLY BILLING
 1.
    
    The Monthly Billing feature shall only be available to Registrants who have leased a new
code, or renew a currently registered CSC for a period of twelve (12) months.2.
    
    Each participating registrant must agree to the following terms and conditions which shall be
attached as an amendment to the Hard Copy Registrant Sublicense Agreement set forth in
Attachment 4 to this Fourth Amendment.
 (a)
    
    Registrant must be the CSC Applicant for a minimum of twenty-five (25) CSCs and
must exercise this monthly billing feature for a minimum of five (5) CSCs. Such CSCs
can be new CSCs or may be renewal of existing CSCs under this program provided that it
maintains a minimum of five (5) active CSCs in this program and a total of twenty- five
(25) CSCs. These minimum numbers may be changed by mutual agreement of the CTIA and
Registry.(b)
    
    All monthly billing payments must be paid by credit or debit card  no
exceptions;(c)
    
    All payments are made monthly in advance.(d)
    
    In the event that there are insufficient funds or the card is refused, the
customer will be notified and will have 72 hours to provide a replacement card number;
if this occurs more than once, Registry reserves the right to cancel the customers
eligibility in the program immediately;(e)
    
    If the customer defaults on credit/debit card payments, and payment to Registry
is refused by the applicable financial institutions, Registry shall have the right to
immediately terminate Registrant from this program. Upon such termination, payments of
all amounts owed to Registry shall be accelerated and become immediately due and
payable to Registry.




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ATTACHMENT NUMBER 3 TO THE
FOURTH AMENDMENT TO COMMON SHORT
CODE LICENSE AGREEMENT
 ONLINE REGISTRANT SUBLICENSE AGREEMENT
 THIS IS A LEGALLY BINDING AGREEMENT BETWEEN NEUSTAR, INC., THE COMMON SHORT CODE (CSC)
REGISTRY OPERATOR (REGISTRY), AND YOU, THE APPLICANT FOR A LICENSE TO USE CSC(S) IN ACCORDANCE
WITH THE TERMS OF THIS SUBLICENSE AGREEMENT (AGREEMENT). PLEASE BE ADVISED THAT THE MERE
APPLICATION FOR OR REGISTRATION OF A CSC WITH THE REGISTRY DOES NOT GUARANTEE THAT A PARTICIPATING
CARRIER WILL ACCEPT OR IMPLEMENT THE CSC OR THAT YOU WILL BE ABLE TO USE THE CSC AT ALL.
 BY SELECTING I AGREE, BY USING THE SERVICE, OR BY SIGNIFYING YOUR ACCEPTANCE IN ANY OTHER
WAY, YOU AGREE TO BE BOUND BY THIS AGREEMENT. IF YOU DO NOT AGREE WITH ALL OF THESE TERMS AND
CONDITIONS, YOU ARE NOT AUTHORIZED TO USE THE SERVICE AND YOU MUST DISCONTINUE ANY FURTHER
USE.
 1. The
Service. Association® CSC FAOs.
 2. Registration, Password and Security. logging into Your account .
 3.
Privacy. PRIVACY STATEMENT
OF THE CSCA




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4. Disclosure of Certain Information.
 5. The Application.
 application form Registrys INSTRUCTIONS .




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CSC Opt-in Directory.
 6. Registry Reservation.
 7. Fees.




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8. Ownership.
 9. Links.
 10.
Trademark Notice.
 11. Designated Agent.




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12. Local Laws; Export Control.
 13. Disclaimer of Warranty, Limitation of Liability.
 14. Indemnification.




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15. Modifications to the Service.
 16. Termination.
    17. Arbitration.




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18. Force Majeure.
 19. Governing Law.
 20. Changes to this Agreement.
 21. Assignment of Agreement.
 22. Severability.
 23. Waiver.




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24. Entire Agreement.




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ATTACHMENT NUMBER 4 TO THE
FOURTH AMENDMENT TO
COMMON SHORT CODE LICENSE AGREEMENT  HARD COPY REGISTRANT SUBLICENSE AGREEMENT
 
 PLEASE BE ADVISED THAT THE MERE APPLICATION FOR OR REGISTRATION OF A CSC WITH THE
REGISTRY DOES NOT
GUARANTEE THAT A PARTICIPATING CARRIER WILL ACCEPT OR IMPLEMENT THE CSC OR THAT YOU WILL BE
ABLE TO USE THE CSC AT ALL.
 NeuStar, Inc.(Your Name)Signature:
    
    
    
    
    
    Signature:Name:
    
    
    
    
    
    Name:Title:
    
    
    
    
    
    Title:Date:
    
    
    
    
    
    Date:Billing ContactBilling AddressP.O. /Billing Ref.# (if applicable)
 1. The Service. CSC FAQs .
 2. Registration, Password and Security. logging into Your account.




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3. Privacy. PRIVACY STATEMENT
OF THE CSCA
 4. Disclosure of Certain Information.
 5. The Application.
 application form, Registrys INSTRUCTIONS.




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CSC
Opt-in Directory.
 6. Registry Reservation.




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7. Fees.
 8. Ownership.
 9. Links.




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10. Trademark Notice.
 11. Designated Agent.
 12. Local Laws; Export Control.
 13.
Disclaimer of Warranty, Limitation of Liability.




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14. Indemnification.
 15. Modifications to the Service.
 16. Termination.




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17. Arbitration.
 18. Force Majeure.
 19. Governing Law.
 20. Changes to this Agreement.




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21. Assignment of Agreement.
 22. Severability.
 23. Waiver.
 24. Entire Agreement.




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EXHIBIT 1 TO THE REGISTRANT SUBLICENSE AGREEMENT
 APPLICATION FORM
 [SEE ATTACHED]




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Application date: CSCACSCApplication Applicationid:
Common Short Code Administration            Application type:New            Renewal
Sales person:
CSC(s) applied for:___
Type:Select            Random Content rating:under 18 18 and over Term requested:3 months 6 months 12 months CSC Leasing Costs: Each select CSC is leased for $1000/month. Each random CSC is leased for $500/month. The
Registry must receive payment before a CSC is leased to the Applicant. The Registry must receive
payment before a Random CSC is identified. Total select CSC(s) leased:x            Number of months leased for: x 1000 = Select CSC leasing cost
x 1000 ..... =
Total random CSC(s) leased: xNumber of months leased for            x 500 = Random CSC leasing cost
X ............................ x 500 =
Total CSC leasing amount due: =
Payment Method
       Credit card            Type of card:MasterCard Visa            American Express            Discover
Card number: ............... Exp. date: .................. Name on card:
Cardholders signature: ........ Date;
Check            Check#: ............ PO Number:
Applicant Details:
      
Contact Name: .............. Company Name:
Address:
City: State/Providence: .................................. Zip/Postal Code: ............ Country:
Phone: ......................... Ext.:___Email Address:
Billing Contact Details:
      
Contact Name: .............. Company Name:
Address:
City: State/Providence: .......................................... Zip/Postal Code: ............ Country:
Phone: ......................... Ext.: .......................... Email Address: ___ Page 26of 28 Content Provider Details: A content provider is the entity that ownsor hasthe right to content and licenses such
content to the application provider/connection aggregator for delivery to the end user. Contact Name:
Company Name:
Phone: ...... Ext.: .. Email: Application Provider Details:
   An application provider delivers the technology platform for programs that utilize CSCs.
Contact Name:
Company Name:
Phone: ......................... Ext: ........................... Email: Connection Aggregator Details: A connection aggregator may provide connectivity between carrier networks and application
providers/content providers. Aggregator Name:
To be determined:: ___
Anticipated Program Details:
      
Program Description:
Program start date: Program end date: ....................... N/A (ongoing): What is the application type?iTV            iRadio            In venue            Ring tones/graphics Contest            Consumer packaging            Movie promo            Info alerts
Chat            Print/Outdoor            mCommerce            Coupons/advertising
Other
Expression of interest:Opt-in            Opt-out            No-reply
Will the program be offered during a specific day of the week/time of day? YesNo
If yes, when?
Does the program have any time of day/day of week restrictions planned? Yes            No
If yes, what are the restrictions?
is this a national campaign? Yes            No
If not, describe the region(s) for the campaign.
How will the applications be promoted/marketed?
TVAir dates and times: ............................ National            Local
Radio            Air dates and times: ........................ National            Local
PrintDate live: ................................... National            Local
Outdoor            Date live: .................................... National Local Page 27 of 28 Anticipated Program Details (Continued): POS            Date live: ............... National            Local
Web            Date live: ............... National            Local ifprint: Newspaper            Magazine            Collateral            Packaging            Other Wilt traffic associated with the program be:Constant
Subject to spikes If it will be subject to spikes, please
describe. Provide estimated traffic volumes: What are the specific assumptions associated with the estimated traffic volumes? Describe the Application associated with the CSC. Please describe the step-by-step interaction with
the user. Message Rates:Premium            Non Premium            FreeHow do consumers get help? _ What is the website URL for consumer Information? (Optional) What is the toll free customer care number for customer information? (Optional) Provide a short description of the program that wireless carriers can use to inform their
customers. (Optional) CSC Directory: Get more exposure! List your Campaign in the New Official CSC Directory. The CSCA is excited to offer you the opportunity to list your Mobile Campaign in the New
OfficialCSC Directory! This Directory provides you a unique opportunity to promote your
CSC application and provides others an easy way to find your mobile campaign. You may
provide a brief description, the CSC and call to action for example. We are confident this
will provide your company with additional exposure and value as we continue to drive more
and more traffic to the CSCA website through our marketing outreach. Take advantage today;
list your campaign in the Directory now. For questions or more information please contact
CSC Support at support@USshortcodes.com. Would you like to participate in the CSC Directory? Yes I agree that I have read and understand the Registrant Sublicense Agreement attached on
the reverse of this Application and agree to abide by all the Terms and Conditions of this
Agreement. Applicants signature Date Page 28 of 28