ContractLetter Agreement • April 9th, 2007 • United States Cellular Corp • Radiotelephone communications • New York
Exhibit 10.1 EXECUTION VERSION United States Cellular Corporation c/o Telephone and Data Systems, Inc. 30 North LaSalle, Suite 4000 Chicago, IL 60602 April 4, 2007 Re: Accelerated Share Repurchase Ladies and Gentlemen: This letter (the “Letter Agreement”) sets forth the agreement we have reached with respect to a transaction between Citigroup Global Markets Limited (“Citigroup”), acting through Citigroup Global Markets Inc. (“CGMI”) as agent, and United States Cellular Corporation (the “Company”) in relation to shares of the Company’s Common Shares, par value $1.00 (the “Common Stock”). Citigroup is authorized and regulated by the Financial Services Authority. Citigroup is entering into this Transaction as principal and not as an agent for any other party. CGMI MAY HAVE ACTED AS AGENT IN CONNECTION WITH THIS TRANSACTION. CITIGROUP IS NOT REGISTERED AS A BROKER-DEALER UNDER THE SECURITIES AND EXCHANGE ACT OF 1934, AS AMENDED. CITIGROUP IS YOUR COUNTERPARTY TO THIS TRANSACTION. IF CGMI
