The phone number of BitDefender Antivirus Customer Service is 954-414-9655. This BitDefender Antivirus Customer Service is a 24 hours support number. BitDefender Antivirus provides customer service in 12 regional languages, to know the contact details of your selected region find the information in the table below. If you are unable to find your regional language support, you can contact the BitDefender Antivirus Global phone number at 40-374-303-094. The number is also a 24 hour support service.