EXHIBIT 32.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of Alaska Communications Systems Group, Inc. (the "Company") on Form 10-Q for the period ending September 30, 2003 (the "Report"), I, Liane Pelletier Chief Executive Officer and President 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; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company. Date: November 13, 2003 /s/ Liane Pelletier ------------------- Liane Pelletier Chief Executive Officer and President Alaska Communications Systems Group, Inc.