Date of Filing: June 4, 2001 File No.: 1-16169 ----------------------------------------------------------------------- Form U-5A NOTIFICATION OF REGISTRATION Filed under Section 5(a) of the Public Utility Holding Company Act of 1935 Exelon Energy Delivery Company, LLC Name of Registrant The undersigned holding company hereby notifies the Securities and Exchange Commission that it registers under and pursuant to the provisions of Section 5(a) of the Public Utility Holding Company Act of 1935 and furnishes the following information as to the registrant and subsidiary companies thereof: (1) Exact name of registrant: Exelon Energy Delivery Company, LLC (2) Address of principal executive offices: 10 South Dearborn Street, 37/th/ floor, Chicago, Illinois 60603 (3) Name and address of officer to whom notices and communications should be addressed: Ruth Ann M. Gillis Senior Vice President Exelon Corporation 10 South Dearborn Street, 37/th/ Floor, Chicago, Illinois 60603 (4) Certain information regarding the registrant and each subsidiary company thereof (indented to reflect parent-subsidiary relationships). Exelon Energy Delivery Company & Subsidiaries Name of Company Organization State Type of Business Exelon Energy Delivery Company, LLC Limited Liability Holding Company Company PECO Energy Company Corporation PA Electric and Gas Utility PECO Energy Capital Corp. Corporation DE Financing PECO Energy Capital, L.P. Limited Partnership DE Financing PECO Energy Capital Trust II Trust DE Financing PECO Energy Capital Trust III Trust DE Financing PECO Energy Transition Trust Statutory DE Financing Business Trust Adwin Realty Company ("ARCO") Corporation PA Real Estate Ambassador II Joint Venture (50% interest) Partnership PA Real Estate Bradford Associates (50% interest) Partnership PA Real Estate Franklin Town Towers Associates Partnership PA Real Estate Henderson Ambassador Associates (50% interest) Partnership PA Real Estate Route 724 Partnership PA Real Estate Riverwatch Associates Partnership PA Real Estate

Name of Company Organization State Type of Business ExTel, LLC Limited Liability DE Financing Company PECO Wireless, LP (PECO 99% and ExTel 1% interest) Limited DE Financing Partnership PEC Financial Services, LLC LLC PA Financing ATNP Finance Company Corporation DE Financing East Coast Natural Gas Cooperative, LLP (41.12% LLP DE Financing interest) PECO Hyperion Telecommunications (1% interest, 49% Partnership PA Telecommunications interest held by PHT Holdings, LLC) Horizon Energy Company Corporation PA Inactive Commonwealth Edison Company Corporation IL Electric Utility Commonwealth Edison Company of Indiana, Inc. Corporation IN Energy-related ComEd Financing I Trust DE Financing ComEd Financing II Trust DE Financing ComEd Funding, LLC LLC DE Financing ComEd Transitional Funding Trust Trust DE Financing Commonwealth Research Corporation Corporation IL Energy/Utility related Edison Development Company Corporation DE Real Estate Edison Development Canada Inc. Corporation Canada Land Development Edison Finance Partnership Partnership Canada Financing SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, the registrant has caused this Notification of Registration to be duly signed on its behalf in the City of Chicago and State of Illinois on the 4th day of June, 2001. EXELON ENERGY DELIVERY COMPANY By: EXELON CORPORATION By: /s/ Ruth Ann M. Gillis ---------------------------- Name: Ruth Ann M. Gillis Title: Senior Vice President (Seal) Attest: /s/ Scott N. Peters ------------------------- VERIFICATION State of Illinois County of Cook The undersigned being duly sworn deposes and says that she has duly executed the attached Notification of Registration dated June 4, 2001 for and on behalf of Exelon Energy Delivery Company pursuant to her authority as Senior Vice President of Exelon Corporation, the parent company of Exelon Energy Delivery Company; and that all action taken by stockholders, directors, and other bodies necessary to

authorize deponent to execute and file such instrument has been taken. Deponent further says that she is familiar with such instrument and the contents thereof, and that the facts therein set forth are true to the best of her knowledge, information and belief. By: /s/ ------------------------ Name: Ruth Ann M. Gillis (OFFICIAL SEAL) Subscribed and sworn to before me, a notary public this 4th day of June, 2001 /s/ Mary L. Kwilos - ------------------- My commission expires October 26, 2001