CHARTER Customer Support (800) 747-2725Phone’ Number What Is The CHARTER Customer Support Phone’ Number? What Is The CHARTER Customer Support Phone’ Number? Assuming you are referring to AT&T/CHARTER, the customer Support number is How to Contact CHARTER Customer Support Phone’ Number CHARTER is a leading provider of telecommunications and internet Supports. They offer a wide range of products and Supports to their customers, including Customer Support. If you need to contact CHARTER Customer Support, there are a few different ways you can do so. You can either call their customer Support number, or you can chat with a representative online. If you choose to call CHARTER Customer Support, the phone’ number you need to dial is When prompted, enter your 10-digit telephone’ number followed by the pound sign. You will then be connected with a customer Support representative who can help you with your inquiry. read less