Exhibit 32.2

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. 1350

(as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002)

In connection with the Annual Report of Time Warner Telecom Inc. (the “Company”) on Form 10-Q for the period ended December 31, 2003 filed with the Securities Exchange Commission (the “Report”), I, David Rayner, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. Section 78m or 78o(d)); and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/    David J. Rayner
Name:	David J. Rayner
Date:	March 12, 2004