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  1. Optimum Mobile
  2. Phones & Network

Phones & Network

eSIM

  • What is an eSIM?
  • How do I activate my eSIM?
  • Which eSIM devices are compatible with the Optimum Mobile network?
  • What do I do if my eSIM doesn’t work?
  • What do I do If I lose my phone with an eSIM?
  • How do I activate my eSIM using the QR Code on my iPhone?

See all 20 articles

Upgrade

  • How can I upgrade my phone?
  • Thinking of upgrading your phone?
  • Phone Upgrade (Replacing a phone)

Coverage

  • What is 5G?

Apple

  • How do I move my phone number from my Android device to an eSIM on my new iPhone 14?
  • Will activating an eSIM lock my iPhone to Optimum Mobile?
  • How do I know if my iPhone is unlocked?
  • How do I activate an iPhone with eSIM if I don’t have access to a Wi-Fi network?
  • How to add an email account to my iPhone?
  • How do I insert a SIM Card into my iPhone?

See all 17 articles

Motorola

  • How do I manage voicemail on my Motorola device?

Samsung

  • How do I transfer my data/contacts to a new Samsung device?
  • How do I manage voicemail on my Samsung device?

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?

See all 18 articles

Lost/Stolen

  • I lost my phone or my phone was stolen. What do I do now?
Altice Mobile

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Affordable Connectivity Program
Savings Calculator
Add International

Phones—

All Phones
Bring Your Own Phone
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Upgrade

Deals—

All Deals
Internet + Mobile Savings

Why Us—

Why Optimum Mobile

Coverage—

Nationwide Coverage

Mobile Support—

Mobile Support
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Chat With Us
Contact Us
Contáctenos

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Altice USA
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