International Phone Numbers Made Easy with eSIM: A Comprehensive Guide


  • Author: Blessing I. Paul

  • Last Update On: 02-Apr-2023 01:12:59am

  • Category: Education, Tips and Tricks

  • Topic: Self Help, Tutorials

International Phone Numbers Made Easy with eSIM: A Comprehensive Guide


An eSIM (embedded-SIM) is a form of SIM card that is embedded directly into a device. Instead of an integrated circuit located on a removable universal integrated circuit card (UICC), typically made of PVC, an eSIM consists of software installed onto an eUICC chip permanently attached to a device. If the eSIM is eUICC compatible, it can be re-programmed with new SIM information. Otherwise, the eSIM is programmed with its ICCID/IMSI and other information at the time it is manufactured, and cannot be changed. – Wikipedia

eSIM stands for "embedded SIM". It is a small, programmable chip that is embedded directly into a device, such as a smartphone, tablet, or smartwatch. Unlike traditional SIM cards, which are physical cards that can be removed and swapped between devices, eSIMs are built into the device and cannot be physically removed.

The eSIM contains all the information that a traditional SIM card would, such as subscriber identity, network authentication credentials, and carrier information. However, because it is programmable, it can be reprogrammed over the air (OTA) by the carrier, allowing for more flexible and convenient activation and management of mobile services.

With an eSIM, users can activate and switch between mobile plans without needing to physically swap SIM cards. This makes it easier for users to manage multiple phone numbers, switch carriers, and use their devices while traveling internationally.

Once an eSIM carrier profile has been installed on an eUICC, it operates the same as a physical SIM, complete with a unique ICCID and network authentication key generated by the carrier.

The eSIM standard was first released in 2016; since that point, eSIM has begun to replace physical SIM in domains including cellular telephony.

In this post I will only talk about the USA and UK carrier where the major eSIM technology originated from.

To obtain an eSIM for Verizon, AT&T, T-Mobile, Sprint, or other carriers, you would need to follow the carrier's specific instructions for obtaining and activating an eSIM.

Here are some general steps to follow:

Check if your device is compatible with eSIM technology. Most new Smartphone’s and smart watches are compatible with eSIMs, but not all devices are.

Contact your carrier and ask if they offer eSIM technology. Not all carriers offer eSIMs, and those that do may have specific requirements or limitations.

If your carrier offers eSIMs, ask for a QR code or a confirmation code to activate the eSIM on your device.

Scan the QR code or enter the confirmation code on your device to activate the eSIM.

Follow any additional instructions from your carrier to complete the activation process.

In the USA, several carriers support eSIM technology, including:

Verizon: Verizon supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

AT&T: AT&T supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

T-Mobile: T-Mobile supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

Sprint: Sprint supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

US Cellular: US Cellular supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

In the UK, several carriers support eSIM technology, including:

EE: EE supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

Vodafone: Vodafone supports eSIMs for both pay monthly and pay-as-you-go customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

O2: O2 supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

Three: Three supports eSIMs for both personal and business customers. They offer eSIMs for compatible devices such as iPhones, iPads, and smartwatches.

GiffGaff: GiffGaff supports eSIMs for compatible iPhones and iPads.

To get started, I will advice to check their website on any of the carrier listed above to get the latest methods on how to own an eSIM.

It’s important to note that not all carriers support eSIMs for all devices, so you should confirm with your carrier whether your specific device is compatible with eSIMs before attempting to activate one. Additionally, some carriers may charge an additional fee for activating an eSIM, so you should confirm any fees with your carrier before proceeding.

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Blessing I. Paul

Blessing I. Paul

Super Admin, Founder, Admin, & Contributor

Blessing Ikechukwu, Paul, is the CEO/Manager of Blomset Drive Technologies, also the founder of this website (www.tech-hint.net).

He's a full stack web developer, digital marketing consultant & SEO analyst, computer security personnel and more, with more than 7+ years' experience. For hire you can contact him. You can check more of his blog post. Follow him on LinkedIn, Twitter and Facebook.





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