What is this number 650-543-4800: Is 650-543-4800 Facebook?? {Facebook Phone number @24*7$$} What is this number 650-543-4800: Is 650-543-4800 Facebook?? {Facebook Phone number @24*7$$} 650-543-4800 and 1-888-805-1752 is Facebook's phone number for customer service. You can directly talk to the Facebook customer support agent using this number. Additionally, there are various other ways available that can help you to connect with the customer support team. It could be direct contact forms, email, live chat, business support, social media platforms, etc. Thus, to know how to reach Facebook support, go through the following methods properly and choose the one as per your choice and comfort and fix all your existing issues.