BellSouth is a telecommunications company in the United States. BellSouth offers phone service in the Southern part of the United States. BellSouth offers customer service through its parent company AT&T with chat, email, and phone support. If you need to contact BellSouth Customer Service, there are a few different ways to do so. You can call the Bellsouth Customer Service Number at 1-833-836-0944 or simply visit the BellSouth website is available 24 hours a day, 7 days a week, so you can always contact us whenever you want.