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  1. Optimum Mobile
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General

  • Dialing Plan Change Coming to 602 & 623 Area Codes in Arizona
  • New 274 Area Code in Wisconsin
  • Poor Audio on Phone Calls
  • No Service or Signal Issues
  • Internet and Data Issues
  • Why am I getting a “SIM is locked” message on my phone?
  • New 870 Area Code in Arkansas
  • How do I unlock my Optimum Mobile device?
  • New 227 Area Code in Maryland
  • New 329 Area Code in New York
  • New 369 Area Code for parts of California
  • New 861 Area Code in Illinois
  • New 363 Area Code for Nassau County
  • What are robocalls or spam calls?
  • How can I update my phone software and network settings?
  • What APN settings are needed with Optimum Mobile?
  • Do Apple Watch and other wearable devices work with Optimum Mobile?
  • What is the difference between a standard SIM vs. a micro SIM vs. a nano SIM vs. eSIM
Altice Mobile

Plans—

Our Plans
Affordable Connectivity Program
Savings Calculator
Add International

Phones—

All Phones
Bring Your Own Phone
Trade-in
Apple
Samsung
Motorola
Upgrade

Deals—

All Deals
Internet + Mobile Savings

Why Us—

Why Optimum Mobile

Coverage—

Nationwide Coverage

Mobile Support—

Mobile Support
Articles
Contact Us
Contáctenos

Company—

Altice USA
Optimum
Careers

Stores

MyMobile (My Account)

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