Webto remove a line or cancel service, choose chat when available or call us at 800. 331. 0500. For illinois and new york wireless accounts only: If you ordered service online, you may be eligible to cancel that wireless service online at att. com/myatt. Webvisit the at&t wireless return policy page to find out how to return your device and cancel service. To cancel directv, log in to your directv account. Webhow to cancel your at&t wireless service. Be sure you have your wireless account number and/or phone number (s) handy. You can also cancel your service online, by selecting the chat option on the contact us page if it's available. Move, change, suspend & cancel service. Find out how to make changes to your at&t account or service. Cancel wireless service or remove a line. Suspend wireless service or block a device. Move your service to a new address. Find out how to cancel or suspend your service. Go to cancel & suspend.