Item 3.01(a). Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On April 5, 2006, United States Cellular Corporation ("U.S. Cellular") received a notice from the staff of The New York Stock Exchange ("NYSE") dated April 3, 2006 indicating that U.S. Cellular has been identified as late filer as a result of its failure to file its annual report on Form 10-K for the year ended December 31, 2005 on a timely basis in compliance with Section 13 or 15(d) of the Securities Exchange Act of 1934. This notice relates to U.S. Cellular debt securities that are traded on the NYSE under the symbols UZG and UZV. As a result of the prior delay in the filing of U.S. Cellular's Form 10-Q for the period ended September 30, 2005, UZG is currently trading as UZG.LF and UZV is trading as UZV.LF, with the indicator "LF" standing for "Late Filer." As a result of the late filing of the Form 10-K for the year ended December 31, 2005, this indicator will remain in effect until U.S. Cellular files both its Form 10-Q for the period ended September 30, 2005 and its Form 10-K for the year ended December 31, 2005. As previously disclosed, U.S. Cellular also does not expect to file its Form 10-Q for the quarter ending March 31, 2006 on a timely basis and this will also result in non-compliance with the NYSE listing standards. U.S. Cellular expects to regain compliance with such NYSE listing standards when it has filed with the Securities and Exchange Commission ("SEC") its Form 10-Q for the period ended September 30, 2005, its Form 10-K for the year ended December 31, 2005 and its Form 10-Q for the quarter ending March 31, 2006.

Although U.S. Cellular has not received a notice to such effect, U.S. Cellular is also not in compliance with Sections 134 and 1101 of the American Stock Exchange ("AMEX") Company Guide and its listing agreement as a result of U.S. Cellular's failure to file its annual report on Form 10-K for the year ended December 31, 2005 on a timely basis. U.S. Cellular's Common Shares are traded on the AMEX under the symbol USM. As a result of the prior delay in the filing of U.S. Cellular's Form 10-Q for the period ended September 30, 2005, USM is currently trading as USM.LF, with the indicator "LF" standing for "Late Filer." As a result of the late filing of the Form 10-K for the year ended December 31, 2005, this indicator will remain in effect until U.S. Cellular files both its Form 10-Q for the period ended September 30, 2005 and its Form 10-K for the year ended December 31, 2005. As previously disclosed, U.S. Cellular also does not expect to file its Form 10-Q for the quarter ending March 31, 2006 on a timely basis and this will also result in non-compliance with the AMEX listing standards. However, as previously disclosed, the AMEX granted U.S. Cellular an extension until June 30, 2006 to regain compliance with AMEX listing standards. U.S. Cellular expects to regain compliance with such AMEX listing standards when it has filed with the SEC its Form 10-Q for the period ended September 30, 2005, its Form 10-K for the year ended December 31, 2005 and its Form 10-Q for the quarter ending March 31, 2006 on or prior to June 30, 2006.

Item 8.01 Other Events

As previously disclosed, U.S. Cellular is restating its financial results for each of the three years in the period ended December 31, 2004, including quarterly information for 2004 and 2003 and certain selected financial data for 2001 and 2000. As a result, U.S. Cellular has delayed the filing of its Form 10-Q for the quarter ended September 30, 2005. Also, as discussed above, U.S. Cellular has failed to file its annual report on Form 10-K for the year ended December 31, 2005 on a timely basis and, further, does not expect to file its Form 10-Q for the quarter ending March 31, 2006 on a timely basis.

The restatements and the late filings of the Form 10-Q for the quarter ended September 30, 2005 and the Form 10-K for the year ended December 31, 2005 resulted in defaults under the revolving credit agreement between U.S. Cellular and certain lenders and under certain forward contracts between a subsidiary of U.S. Cellular and a counterparty. In addition, the late filing of the Form 10-Q for the quarter ending March 31, 2006 will result in defaults under such revolving credit agreement and forward contracts. U.S. Cellular has not failed to make and does not expect to fail to make any scheduled payment of principal or interest under such revolving credit

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agreements or forward contracts. U.S. Cellular has received waivers under its revolving credit facility and certain forward contracts relating to defaults resulting from the restatements and delayed filings, subject to the condition that U.S. Cellular files (i) the restatements and its Form 10-Q for the period ended September 30, 2005 by April 30, 2006, (ii) its Form 10-K for the year ended December 31, 2005 by May 31, 2006 and its Form 10-Q for the quarter ended March 31, 2006 by June 30, 2006.

Item 9.01. Financial Statements and Exhibits.

(c)      Exhibits:

        In accordance with the provisions of Item 601 of Regulation S-K, any Exhibits filed or furnished herewith are set forth on the Exhibit Index attached hereto.

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SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

United States Cellular Corporation
(Registrant)

Date: April 7, 2006