Getting Started

The following information will help you set up your phone and activate your service.

Setting up your phone

If you have a new phone, turn it on and follow the steps on the screen.

If you are bringing your own phone, make sure your phone is paid off and unlocked before setting up your service.

Connect to Wi-Fi and make sure your phone has the most current Operating System installed. If you need more information visit our Phone Tutorials page.

Activating your service

Optimum Mobile will let you know when to start transferring your number if you are bringing your number. For more information, see "How do I transfer my phone number to Optimum Mobile."

If you are activating a new number, you need to sign in to MyMobile to complete activation. See "How do I activate my SIM Card?" or "How do I activate my eSIM?" for complete details.

If you have a SIM Card from a previous carrier, you can learn what to do here.

Once you insert your SIM card, accept the Carrier Setting Update (required).

    -Any restore actions or factory defaults will require that you repeat this step again.

Wait several minutes for your network to register Optimum LTE or 5G.

Learn how to set up your service and manage your account here.


Our Optimum Mobile team is just a phone call or click away. Tap to chat now.


Manage your account easily from your mobile device with MyMobile. Learn how to add it to your home screen.