What is an Unlimited plan?

Optimum Mobile lets you go Unlimited with two plans offering the most premium data, unlimited talk & text, high volume mobile hotspots, and higher quality video streaming. With each Unlimited plan, you get 20 GB premium data, 5 GB mobile hotspot, and SD video streaming. With each Unlimited Max plan, you get even more: 50 GB premium data, 15 GB mobile hotspot, and HD video streaming.

What’s the difference between Unlimited and Unlimited Max?

An Unlimited Max plan offers you even more data and streaming than an Unlimited plan. With Unlimited Max, you get more premium data (50 GB), more mobile hotspot bandwidth (15 GB), and HD video streaming.

Can I mix and match between Unlimited and Unlimited Max lines?

New and existing Optimum Mobile customers can add up to 10 lines total to each account, which can include any combination of Unlimited and Unlimited Max lines.

Can I keep my current device and switch to Optimum Mobile?

Yes! You can bring your own device if it’s compatible with Optimum Mobile’s service and if it’s been unlocked by your previous carrier.

Can I transfer my number to Optimum Mobile?

Yes! You can keep your number when you make the switch to Optimum Mobile. Keep an eye out for special deals that require you to keep your existing number.

Why would I need data?

Mobile data is the internet connection a carrier can provide you through cellular networks, using technology like 4G LTE or 5G. This keeps you connected even when you don’t have a WiFi connection handy.

What is WiFi calling?

WiFi calling lets you make and receive phone calls as well as send text messages over a WiFi network instead of via cellular network. Sometimes, you might experience reduced mobile network coverage (e.g., inside of large buildings) that can be resolved if you can access a WiFi network instead.

Pre-order
the new
iPhone 17 Pro
ON US!

Pre-order now

Upgrade today
& go Unlimited

Pre-order the new
iPhone Air ON US

Pre-order iPhone Air

See details

Get iPhone Air ON US: Trade-in value of $250 or more can get $400 Bonus off iPhone Air. Trade-in value of $126-$249 can get $350 Bonus off iPhone Air. Trade-in value of $1-$125 can get $250 Bonus off iPhone Air. Trade-in bonus is a promotional discount in addition to the customer’s Trade-in value. Savings applied as 36 monthly bill credits toward the finance of iPhone Air. Trade-in value + promotional credits cannot exceed the device cost. Trade-in conditions apply. Trade-in must be shipped within 21 days of new device purchase. Monthly credits start within 2 bill cycles once Trade-in is received and verified. See optimum.com/mobile/how-to-trade-in for details on how to trade in. For well-qualified new or existing customers on Unlimited or Unlimited Max plan (plans avail. as of 8/2022). Tax on pre-credit price due at sale. Changes in phone or plan may result in cancellation of remaining promotional credits. Customer must remain in good standing with no past due or returned payments throughout promo period to maintain promotional credits. Cancellation of service will result in termination of credits and the remaining balance on the financing agreement will be owed. Returns allowed within 21 days of service; after 22 days returns are subject to a $50 restocking fee. While supplies last. Pricing, offers, and terms subject to change and discontinuance w/o notice. All trademarks and service marks are the property of their respective owner. © 2025 CSC Holdings, LLC.
Unlimited Mobile.
Every line.
Just $25/mo.*

Call to order

Shop now

See details

See details

*Get 2+ Unlimited lines for just $25/mo. per line. 2+ lines of Unlimited service auto-renews monthly at $25/mo. per line + taxes & fees for 12 months. Standard rates apply at month 13. Standard rates subject to change. Subscription auto-renews each month until canceled. Cancel any time at 866-200-7186. Cancellation effective at end of then-current billing period. Advertised pricing with coupon code SAVENOW for 2 lines, or HAPPYFAM for 3+ lines. Mobile signup must be completed within 30 days of Internet, otherwise Internet billed at current promotional rate, which is subject to change at any time. For new customers only. Paperless billing & Auto Pay req’d for mobile. Savings via 12 monthly bill credits. Credits start within 2 bill cycles. Requires number transfer from another carrier within 14 days or 36-mo. device financing. One per account. Non-Internet Customer Surcharge: Displayed pricing for Optimum Internet customers. Starting with third billing cycle, a surcharge of $20/mo. per line will be added unless Optimum Internet account is linked to mobile account. Other terms, restrictions & conditions apply. Visit www.optimum.com/mobile/plan for plan details. Pricing, offers, and terms subject to change and discontinuance w/o notice. All trademarks and service marks are the property of their respective owner. © 2025 CSC Holdings, LLC.

On America’s largest 5G network

See why 5G is better

Level up your gaming experience with higher frequencies, greater bandwidth & faster data transfers.

Don't take slow for an answer. Get a boost in speed and capacity for faster downloads to watch shows and movies. Or improve efficiency while working from home.