Exhibit 21.1 PACIFIC CENTURY FINANCIAL CORPORATION SUBSIDIARIES OF THE REGISTRANT The required information with respect to subsidiaries of Pacific Century Financial Corporation at December 31, 1999 is provided below. All domestic subsidiaries are wholly owned except for those entities for which directors own qualifying shares. Each entity is consolidated with its immediate parent company except as noted. PACIFIC CENTURY FINANCIAL CORPORATION (Parent) Bank Holding Company Subsidiaries: FIRST SAVINGS & LOAN ASSOCIATION OF AMERICA, F.S.A. (Guam) Federally Chartered PACIFIC CENTURY BANK, N.A. California PACIFIC CENTURY SMALL BUSINESS INVESTMENT COMPANY, INC. Hawaii BANK OF HAWAII Subsidiaries: Bank of Hawaii International Corp., New York - (Edge Act Office) New York Bank of Hawaii International, Inc. - (Foreign Holding Company) Hawaii Subsidiaries/Affiliates: Bank of Hawaii-Nouvelle Caledonie (95.8%) New Caledonia Bank of Hawaii (PNG) Ltd. (100%) Papua New Guinea Banque de Tahiti (95.4%) French Polynesia Banque d'Hawaii (Vanuatu), Ltd. (100%) Vanuatu Bank of Tonga (30%) Tonga National Bank of Solomon Islands (51%)* Solomon Islands Pacific Commercial Bank, Ltd. (43%)* Samoa Pacific Century Investment Services, Inc. Hawaii Pacific Century Insurance Services, Inc. Hawaii Bankoh Corporation (fka Hawaiian Hong Kong Holdings, Ltd.) Hawaii Pacific Century Advisory Services, Inc. - (Advisory Services) Hawaii Pacific Century Leasing, Inc. (Parent) - (Leasing) Hawaii Subsidiaries: BNE Airfleets Corporation Barbados Pacific Century Leasing International, Inc. Delaware S.I.L., Inc. Delaware Pacific Century Life Insurance Corporation Arizona Triad Insurance Agency, Inc. Hawaii Bankoh Insurance Agency Hawaii * Accounted for under the equity method