YAHOO Customer Service +44(808-178-2987)Phone’ Number What Is The YAHOO Customer Service Phone’ Number? What Is The YAHOO Customer Service Phone’ Number? Assuming you are referring to AT&T/YAHOO, the customer service number is How to Contact YAHOO Customer Service Phone’ Number YAHOO is a leading provider of telecommunications and internet services. They offer a wide range of products and services to their customers, including Customer Service. If you need to contact YAHOO Customer Service, there are a few different ways you can do so. You can either call their customer service number, or you can chat with a representative online. If you choose to call YAHOO Customer Service, 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 service representative who can help you with your inquiry. read less