Optimum Mobile and Internet customers can go to MyMobile and share their Internet account number there. They will only need to do this once, even if they add lines or change their services in the future.
1. Sign in to MyMobile
2. Tap My Account
3. Tap Internet + Mobile Savings
4. Tap Yes, I have an account
5. Enter 13-digit Optimum/Suddenlink Account number and tap Sign up.