Hotmail is one of the oldest mail service provider in the USA. Hotmail is also a Trusted name in email service. If you have any issues like login, signup, forget the password, reset password or any other technical issues, Then you can contact Hotmail Customer Service Number to get a proper solution to your problems. To contact with Hotmail Technical Support expert team you have to dial Hotmail Support Phone Number +1-800-279-1380.