Devices & Network

• 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 device with an eSIM?
• How do I activate my eSIM using the QR Code on my iPhone?

See all 20 articles

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

• What is 5G?

• How do I move my mobile 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

• How do I manage voicemail on my Motorola device?

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

• New 457 Area Code in Louisiana
• New 357 Area Code in California
• New 924 Area Code in Minnesota
• New 821 Area Code in South Carolina
• New 686 Area Code in Virginia
• New 436 Area Code in Ohio

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• I lost my device or my device was stolen. What do I do now?