Always included
Unlimited talk and text
Flexibility to switch plans anytime
5G access at no additional cost**
International plans and travel passes available for purchase
Nationwide coverage
Extra support for phone setup
Bring your own phone
Check your phone's compatibility with our service. If compatible, you'll need an Optimum Mobile SIM Card Kit for each phone that you bring.
Number of phones
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Phone compatibility
Enter your IMEI number.
Common questions
iPhone: Settings > General > About
Android: Settings > About Phone > Status
Each carrier has their own unlocking policy. Visit Optimum Support for a list of unlocking policies and contact info by carrier, including T-Mobile, AT&T, Verizon, and more.
For the most accurate information about unlocking your phone, reach out to your previous carrier directly.
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Check your phone's compatibility
We can use your phone's unique ID number — its IMEI — to check its compatibility with Optimum Mobile.
Connect and keep your number.
Choose a plan. Activate your phone with eSIM or a physical SIM card. Easily transfer your number.
Why eSIM?
eSIM is trending, and here's why: with an eSIM-ready phone, you'll connect quicker, safer, and eliminate the hassle of moving a physical SIM card.
Amazing 5G coverage & speed
Optimum Mobile keeps you connected on the largest and fastest 5G network.
Plans starting as
low as $15/mo.
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Unlimited talk & text
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On America’s largest 5G network
Frequently asked questions
To transfer your current mobile phone number, make sure it's still active. You will also need your account number from your previous carrier, and the PIN/password associated with it.
Once you have that information handy, you can give us a call, go online, or visit in-store to make the transfer.
Read through our DIY instructions for more tips on how to move your number over.
When a phone is unlocked, it can be used across carriers. Check your phone with your current carrier, since they would have to unlock it for you.
Not necessarily.
You will need a SIM card to activate your phone, although depending on your phone it may be an eSIM or a physical SIM card. Your SIM card holds the information a carrier needs to tie a phone number to a mobile phone.
An eSIM is the latest type of SIM card, built directly into your phone. Contrast this to physical SIM cards, which need to be manually transferred between phones.
Activating a phone with eSIM is faster and safer, but your phone needs to be eSIM-compatible. With eSIM, you don't have to wait to activate your phone.
If you love your current phone, we want you to keep it. Learn more about bringing your own phone.
