Exhibit 4.2 ----------- UNITED STATES CELLULAR CORPORATION 8410 West Bryn Mawr Avenue, Suite 700 Chicago, Illinois 60631 July 29, 2002 To: Toronto Dominion (Texas) Inc., as Administrative Agent under the Credit Agreement referred to below Re: Notice of Increase in Total Commitment under the Revolving Credit Agreement dated as of June 26, 2002 --------------------------------------------------- Ladies and Gentlemen: Pursuant to ss.17.10 of the Revolving Credit Agreement, dated as of June 26, 2002, among United States Cellular Corporation, as Borrower, Toronto Dominion (Texas), Inc., as Administrative Agent, Wachovia Bank, National Association, as Syndication Agent, Citibank, N.A. and LaSalle Bank National Association, as Co-Documentation Agents, and the other Lenders party thereto (the "Credit Agreement"), we hereby deliver to you this Notice of Increase in Total Commitment. Capitalized terms used herein and not defined herein shall have the meanings assigned to them in the Credit Agreement. The Borrower hereby requests that the Total Commitment be increased by an amount equal to $75,000,000. The proposed effective date for such increase in Total Commitment is July 30, 2002. The name of each Eligible Assignee which has agreed to become a "Lender" party to the Credit Agreement (an "Acceding Lender") pursuant to this Notice of Increase in Total Commitment, the name of each Lender party to the Credit Agreement, the amount of the Commitment of each such Acceding Lender and Lender, and the effective date of each such Commitment, is set forth below: Name of Amount of Commitment Existing Lender Commitment Effective Date - --------------- ------------- -------------- Toronto Dominion (Texas), Inc. $50,000,000 June 26, 2002 Wachovia Bank, National Association $50,000,000 June 26, 2002 Citibank, N.A. $100,000,000 June 26, 2002 LaSalle Bank National Association $50,000,000 June 26, 2002 Name of Amount of Commitment Acceding Lender Commitment Effective Date - --------------- ------------ -------------- JPMorgan Chase Bank $35,000,000 July 30, 2002 Societe Generale, New York Branch $25,000,000 July 30, 2002 U.S. Bank National Association $15,000,000 July 30, 2002 ------------ Total:$325,000,000 The Borrower hereby confirms to the Administrative Agent that: (i) as of the date of this Notice of Increase in Total Commitment and as of July 30, 2002, the proposed effective date of the increase in Total Commitment, all representations and warranties contained in ss.5 of the Credit Agreement shall be true and correct in all material respects as though made on such date (unless such representation and warranty is made as of a specific date, in which case, such representation and warranty shall be true and correct as of such date); and (ii) as of the date of this Notice of Increase in Total Commitment and as July 30, 2002, the proposed effective date of the increase in Total Commitment, no event shall have occurred and then be continuing which constitutes a Default or Event of Default under the Credit Agreement and all other conditions precedent to a credit extension specified in ss.10 of the Credit Agreement shall be satisfied. [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK] ***Signature Page Follows*** Very truly yours, UNITED STATES CELLULAR CORPORATION By: /s/ Kenneth R. Meyers --------------------------------- Name: Kenneth R. Meyers Title: Executive Vice President-Finance and Treasurer (Chief Financial Officer) By: /s/ John E. Rooney --------------------------------- Name: John E. Rooney Title: President (Chief Executive Officer) Signature Page to Notice of Increase in Total Commitment