Do you have trouble accessing your SBCGlobal email account? Are you looking for a way to switch from SBCGlobal to Att.Net? You can convert your 'sbcglobal.net.' email address to '@ att.net' using the Yahoo Mail interface.You can call the SBCGlobal customer care phone number and consult a professional email technician to know the exact steps involved in switching your account from SBCGlobal to Att.Net. The SBCGlobal helpline number number is available 24 hours a day so you can get an immediate response to any query you may have about your email account.