Use a Three eSIM for prepaid mobile data

  • Install an eSIM (digital SIM card)
  • Connect directly to the Three network
  • Get instant data, with no roaming charges


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How does a Three eSIM work?

An eSIM is a digital SIM card, and you probably already have an eSIM-compatible device. When you install an eSIM for a country or region, it lets your device connect to local networks in that area, like Three. This means your device will have data without needing Wi-Fi or paying roaming charges.


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Trust the quality of a Three eSIM connection

Founded on the third day of the third month (March) in the third year of the new millennium (2003), it’s easy to see where Three (3) got its name, right?

Founded in Hong Kong, Three has more than 110 million customers worldwide in the mobile phone and broadband internet space. (You may also know them as Hutchinson 3G or H3G.)

Here at aloSIM, we’re proud to use the trusted Three network (sometimes known simply as ‘3’) for many of our prepaid eSIM data packages, keeping our customers connected in countries like Hong Kong, the United Kingdom, Indonesia, Macau, Denmark, Ireland, Austria, and more.

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Why should I use a Three eSIM?

Need data quickly? A prepaid eSIM data package running on the Three network can provide a steady, reliable internet connection on your phone, tablet, or computer. All with ZERO roaming charges.

You don’t need to be a regular Three customer to use the Three network with a prepaid 3 eSIM. Anyone can purchase a data package and connect to Three when it’s one of our supported networks for a specific country or region.


How do I get a Three eSIM online?

It’s easy to get a Three eSIM online by shopping for prepaid eSIM data packages, and making sure the data will run over the awesome, high-quality Three network.

Here at aloSIM, you can browse our travel eSIM packages and select ‘Network’ to see exactly which networks on which this eSIM is allowed to roam. Often, you’ll see several supported networks available for each eSIM. This is so your phone can automatically connect you to the best possible network in any given location, as sometimes one will be stronger than another.

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Does aloSIM offer prepaid Three plans?

Yup! All aloSIM data plans are prepaid, which means you pay for the data you’d like and then it’s yours to use anytime.

We offer prepaid Three plans for various countries like Hong Kong, the United Kingdom, Indonesia, Macau, Denmark, Ireland, and Austria.

Just select a data package, install the provided eSIM, and activate your data package when you’re ready to use it.

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How is aloSIM affiliated with Three?

Here at aloSIM, we choose top-quality networks to power our prepaid eSIM data packages for 170+ countries.

We don’t own Three and are not directly affiliated with Three, Hutchinson 3G, or Hutchison 3G Enterprises S.A.R.L., but we do choose to use Three as a preferred network for many of our prepaid data packages because we know it will provide our customers with a strong connection during their travels.

Questions about aloSIM? Please reach out anytime via live chat or email (

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Three eSIM data starting at $4.50


New to using eSIM data?


How to use an eSIM for travel

  1. Download the free aloSIM app
  2. Choose your destination (country or region)
  3. Select a prepaid data package
  4. Install the eSIM on your device
  5. Prepare your device for international travel
  6. Activate your data package

How to avoid roaming charges

  1. Turn Data Roaming off for your primary SIM
  2. Tell your device to use your eSIM for all data

You can still call and text on your regular phone number, but your home carrier may charge fees for each call or text while you’re travelling internationally. (MORE INFO)

FAQs about using a Three eSIM

Check my device

Most newer phones, tablets, and computers are already eSIM-compatible, so use our eSIM device checker to make sure you have a device that can accept an eSIM.

Free Wi-Fi is great when it’s available, safe, and working well, but some destinations make it just about impossible to get a good connection. That’s why it’s nice to have data as a backup to stay connected.

We’re proud to provide aloSIM customers with fast eSIM data connections that allow them to talk, text, surf, and stream comfortably. You’ll likely experience a 4G (sometimes 5G) or LTE equivalent network in most locations, depending on what’s available in the area.

Installation guides

We have detailed eSIM installation instructions for all compatible devices, so whether you’re looking to add eSIM data to an iPhone or iPad, Google Pixel, Samsung Galaxy, or something else, we’ll be able to walk you through the eSIM set-up process easily.

How to avoid roaming charges

It can be confusing to know the best roaming settings for your phone while you travel internationally, so we’ve created an easy walk-through guide to show you exactly how your phone’s roaming settings should look.

Explore the world with aloSIM data



Our eSIM data packages are prepaid, so you always know exactly what you’ll spend on data. No contracts, no surprises, and never any roaming charges.



You’ll have full access to your regular phone number for calling and texting, and you can add data to your device whenever you need it. No in-store visits required!

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Only buy what you need! If you’re not sure how much data you’ll need, start with a 1 GB package. You can always top up your eSIM with more data later.

Go ahead … travel the world, never pay roaming charges

Shop aloSIM in the app or online