Ultra Mobile Starter SIM Kit

Ready to join Ultra Mobile? Pick a flexible plan, activate, then insert the SIM card into your unlocked phone. Ultra Mobile offers 1, 3, 6, 12 months plans from 250MB to Unlimited.

Your world is always included with Ultra Mobile. Connecting you to what you value most through high-speed data, nationwide talk and global text, and free international long distance to 90+ destinations- all on the T-Mobile 5G network. There are no contracts & no commitments—just the perfect plan for you.

Save Even More With Add-Ons:
Auto Renew - Save up to 10% on all 1-Month Plan renewals
Multi-Month - Save even more on our 3, 6 or 12-Month Plans


See if Ultra is right for you:
Check your area's coverage: www.ultramobile.com/coverage
Check your device's compatibility: www.ultramobile.com/byop

Switching to Ultra is easy:
Purchase: Buy an Ultra Mobile Starter SIM Kit
Activate: Go to ultramobile.com/activate & follow our simple steps. During activation you can select the plan for your data needs & choose to transfer your phone number or get a new one.
Swap your SIM: Punch out the correct-sized SIM card & insert it into your unlocked device. Check your phone's manual to ensure you are using the correct size SIM. You can use the provided SIM ejector tool to pop-out the SIM tray on your device.


Manage your Ultra Mobile experience with our app:
Set up Auto Renew
Chat with our Customer Care team
Manage your account
Track account balances
And more!

If your SIM card shows an “activate by” date in the past, or if you need assistance with activating your SIM, contact our Care Team and they will be happy to help you. Call 1-888-777-0446 or chat with us online or in-app.

Capable device req’d; coverage varies. Unlimited customers using >40GB/mo will experience lower speeds. Videos stream at ~480p. Addt’l restrictions apply. See full terms at ultramobile.com/mobile-plans-terms-conditions.