Internet + Mobile Savings.

Combine and save up to
$30/mo. every month.

+ Save up to $15/mo. on your Internet bill
+ Save up to $15/mo. on your Mobile bill


Get a fresh start
with great savings.

Bigger bars, smaller bills.

+ Plans start at $19/mo.
+ 5G access included
Unlimited talk & text


Out with the old.
In with incredible deals.

Check out our latest deals on 5G phones
See Details

Largest, fastest and most reliable 5G network

Optimum Mobile is on the T-Mobile network – America’s largest, fastest and most reliable 5G network. Plus, 5G access is included with all plans at no additional cost.
Optimum Mobile leverages T-Mobile 4G LTE and 5G networks. Largest based on comparison of T-Mobile, Verizon, and AT&T 5G coverage areas. Fastest based on Opensignal 5G User Experience Report January 2021. Most reliable based on Umlaut 2021/04 5G Audit Report. 5G capable device required. 5G not available in all areas.


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$19/mo. per line charge for domestic talk, text and 1 GB data. Autopay required. Up to maximum of five lines. New Optimum Mobile lines only, cannot be applied to existing lines of service. Other monthly charges apply per line and may include $20 activation fee, roaming charges, taxes, gov’t fees and other Optimum Mobile fees and surcharges (including USF fee). Pricing, offer and terms subject to change at any time. Offer only for Optimum (OPT)/Suddenlink (SDL) customers. Must maintain both Optimum Mobile and OPT/SDL accounts in good standing. Data options may be switched at any time during bill cycle. Downgrade limited to 1x per bill cycle & effective w/following bill cycle. Upgrades effective immediately. International talk/text from U.S. and talk/text/data while traveling abroad not included. Quality of Service (QoS): Optimum Mobile leverages T-Mobile 4G LTE and 5G networks to deliver nationwide network coverage. After reaching 1 GB or 3 GB data cap, or after reaching 20GB of Unlimited data use on a line in monthly bill cycle, data reduced to 2G speeds for remainder of bill cycle. Additional data purchases available once 1 GB/3GB data cap reached. Subject to this QoS policy, tethering at 600 Kbps & video streaming at SD quality (about 480p). Domestic off-net (roaming), at 2G speeds. See our Broadband Disclosure for additional performance and network management details. Other Restrictions: Credit approval may be required. Offer subject to discontinuance at any time, not available everywhere or for all phones/networks, and may not be combined with any other Optimum Mobile offers. Other terms and conditions apply; see for plan details. All rights reserved. © 2021 CSC Holdings, LLC.

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