How to Activate My AT&T High Speed Account


When you sign up for AT&T High Speed Internet, you can't just jump online the same way you can with regular dial up Internet service. Instead, you must undergo a waiting period as your telephone line is prepared for the DSL. During this waiting period, AT&T will ship you all of the equipment that is needed to obtain your high speed Internet service. When the waiting period is over, you will have everything you need to quickly get online and begin using your high speed account.

Things You'll Need

  • DSL filters
  • DSL modem
  • DSL cables
  • Determine the "Service Activation Date" for your high speed Internet. Generally, the AT&T representative will advise you of your service activation date when you subscribe to the high speed service. However, if you don't remember your date, you can make an inquiry by calling (888) 321-2375.

  • Wait for your service activation date to arrive.

  • Place phone filters on all of the devices (such as answering machines and alarm system) in your home that use the DSL line. The phone filters should be plugged directly into the telephone's jack.

  • Connect your DSL modem to your computer. This is done by connecting one end of the Ethernet cable that came with your modem into the "Ethernet" port that is on the back of the computer. Connect one end of the "Data" cable to the "Data" port on the back of your DSL modem. Place the other end of the data cable into a nearby telephone wall jack.

  • Power on your computer and DSL modem. Wait for your modem lights to sync.

  • Open your Internet browser. Navigate to the AT&T High Speed Internet Installer website (see Resources).

  • Complete the registration process to activate your AT&T Internet service. You will have to enter the telephone number for your DSL line, your Member ID and password that was chosen when you subscribed to the service. Once your information has been entered, click on the option to download the "Self Support Tool."

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  • Photo Credit DSL Modem Detail image by Rob Hill from
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