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Unfortunately, Your phone is not compatible with Ultra.

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Have Questions? We Have Answers.

With our Bring Your Own Phone (BYOP) program, you can easily get Ultra Mobile service on your current device. Compatible BYOP devices include: Most unlocked, VoLTE compatible phones AT&T, T-Mobile, Cricket Wireless, Simple Mobile, Straight Talk and MetroPCS phones Most phones with a SIM card You may need to ask your carrier to unlock your phone. If you’re still not sure if your phone will work with Ultra Mobile service, visit willmyphonework.net. Once there, enter your phone’s brand and model, U.S. for country and, under “Carrier,” choose Ultra Mobile. (This, however, does not guarantee if the device is unlocked or that the phone will work with our service).

An unlocked phone is a phone that is not tied to a carrier or a phone plan. It allows you to move freely to choose the best provider for you.

At Ultra Mobile, we do not charge an activation fee.

Yes, you can transfer your existing number from your current carrier. To authorize the release of your phone number to Ultra Mobile, you will need the following information from your current carrier: your account number, the corresponding PIN code, and your billing zip code. Your account number can generally be found on your billing statement, or acquired by contacting your provider’s customer service department.

Phone number transfers can take up to 24 hours to complete, but most transferred numbers are fully activated within 8 hours. Landline to mobile ports can take up to 10 business days to complete.

Please contact customer service at 1.888.777.0446 or chat with us on our website if you need any help.

Moreover, for a step-by-step guide, please see our How to Transfer Your Number to Ultra Mobile article.

Check your phone’s compatibility by clicking here.

Cell phones from nearly every manufacturer will work on our network as long as they are 4G VoLTE or 5G compatible and use a SIM card. If you already have a compatible phone, all you need to do is purchase an Ultra Mobile SIM kit.

If your 4G VoLTE or 5G compatible phone meets the following two criteria, your phone will work with Ultra Mobile:


Your phone requires a SIM card.

You have an unlocked phone.

If you begin your Ultra Mobile registration and your phone says, “Restricted” or “Contact Service Provider,” doesn’t allow you to make calls, or won’t grant access to your phone book, the phone is most likely locked. Contact your previous carrier to unlock your phone.

Check our 5G Coverage Map to find out if there is service in your area.

• Make sure your phone is unlocked

• Make sure your phone is compatible with Ultra; you can use our compatibility checker to confirm

• If you are planning on keeping your current phone number, have all the necessary information ready. Depending on your carrier, this typically includes the below:

• Account number

• Pin/Passcode or Number Transfer Pin

• Billing address associated with your account

For further information, please see our How to Activate Your Ultra Mobile Plan article.

If your device is not paid off, contact your current carrier so they can unlock your device. If it is paid off, the easiest way to check is by trying to swap SIM cards and checking for service.

If you are shopping around for a new device, look no further. You can shop for phones for sale or browse for Cellphone deals here. For in-person help, please visit a participating Ultra Mobile Retailer. To find a retailer near you, please check here.

Yes you can. You have up to 45 days from your plan purchase date to activate your SIM. We will notify you before we deactivate it. Should you need ore time, please call our Customer Care Team at 1-888-777-0446 or dial 611 from your Ultra Mobile phone.