Exhibit 3.1(a) CERTIFICATE OF INCORPORATION OF COMCAST CABLE COMMUNICATIONS, INC. FIRST: The name of the corporation is: COMCAST CABLE COMMUNICATIONS, INC. SECOND: The address of its registered office in the State of Delaware is: 100 West Tenth Street, Wilmington, County of New Castle, Delaware, 19801. The name of its registered agent at such address is: THE CORPORATION TRUST COMPANY. THIRD: The nature of the business or purposes to be conducted or promoted is: To have unlimited power to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of Delaware. FOURTH: The total number of shares of stock which the corporation shall have authority to issue is: One Thousand (1,000) shares of common stock, par value One Dollar ($1.00) per share, amounting in the aggregate to One Thousand Dollars ($1,000.00). FIFTH: The name and mailing address of the incorporator is as follows: Name Address ---- ------- Florence B. Owens 12th Floor Packard Building 15th and Chestnut Streets Philadelphia, Pennsylvania 19102 SIXTH: In furtherance and not in limitation of the powers conferred by statute, the Board of Directors is expressly authorized to make, alter or repeal the By-Laws of the corporation. SEVENTH: Elections of directors need not be by written ballot unless the By-Laws of the corporation shall so provide. IN WITNESS THEREOF, I have hereunto set my hand and seal this 31st day of March, 1981. /s/ Florence B. Owens (SEAL) ---------------------------------- Florence B. Owens 2