Three Mobile (AIO20) UK and Roaming SIM Card - Unlimited UK Calls and Texts

BTN 2,174.36

The Three Mobile Go Roam aio20 Data SIM offers 60GB of UK data, 18GB of roaming data, and unlimited UK calls and texts for one month. It's 5G ready, features plug & play setup, and is available as a physical SIM with eSIM coming soon. This plan is ideal for users with very high data demands both in the UK and while roaming.

 

Three Mobile Go Roam (AIO20) - UK Unlimited Calls and Texts | Best Value SIM for UK and Europe


Stay connected like a local while traveling in the United Kingdom and across Europe with the Three Mobile Go Roam (AIO20) SIM, offering an unbeatable blend of value, convenience, and reliability. This SIM card includes 60GB of UK high-speed data, unlimited UK calls and texts, and 18GB of EU roaming data, making it the perfect companion for short-term visitors, tourists, and business travelers. Whether you're streaming on 5G, navigating unfamiliar streets, or updating your socials, this plan ensures uninterrupted connectivity. With simple plug-and-play functionality and soon-to-launch eSIM support, activation is seamless. You get coverage in UK countries, transparent pricing, and access to Three UK’s blazing-fast 5G network—all packed into a flexible 30-day prepaid plan.


Key Features at a Glance 

Features Details 
Brand Three UK
Data Allowance (UK) 60GB of high-speed data
Roaming Data  18GB
Validity 30 days
Calls & Texts (UK) Unlimited
SIM Type Physical SIM (eSIM coming soon)
Network Speed 4G/5G Ready
Coverage UK
Activation Plug & Play or QR code

Unlimited UK Data, Calls, and Texts

This SIM card offers unlimited high-speed data usage, voice calls, and text messaging within the United Kingdom, allowing users to browse the web, stream videos, stay active on social media, and make as many local calls or send as many texts as needed—all without the worry of exhausting allowances or incurring additional costs.


Generous Roaming Allowance

For those traveling beyond the UK, the plan includes a substantial 18GB of high-speed roaming data, enabling users to stay connected throughout Europe and other Go Roam eligible destinations, ensuring uninterrupted access to apps, maps, and communication tools while abroad.


Extensive International Coverage

Designed for the modern traveler, this SIM provides comprehensive coverage not only throughout the United Kingdom but also across 71 international destinations, allowing users to enjoy seamless mobile service without the hassle of switching SIM cards or purchasing multiple local plans during their journey.


Effortless Setup

Activating your Go Roam service is fast and user-friendly—simply insert the physical SIM card into your device or scan the provided QR code for eSIM users, enable data roaming in your settings, and you're instantly connected, with no need for local registration, lengthy setup steps, or technical expertise.


Cost Transparency

This plan is entirely prepaid and free from hidden charges, offering travelers peace of mind with a clear, upfront pricing structure that ensures you know exactly what you're paying for—making it an ideal choice for budget-conscious users who want excellent value without surprises.


5G Connectivity

With access to Three UK’s state-of-the-art 5G network, users can experience ultra-fast internet speeds that support high-quality video streaming, rapid content uploads, real-time video calling, and smooth app performance—even in busy urban environments or while on the move.


Why Choose This Product?

This SIM is designed with modern travelers in mind. Whether you're visiting London, hopping across European capitals, or working remotely while on the move, this plan combines flexibility, affordability, and outstanding network performance. With features like unlimited UK usageextensive roaming5G access, and a stress-free setup, it provides everything you need for a connected, worry-free travel experience.


FAQs

1. Is this SIM card suitable for tourists traveling to the UK and Europe?

Yes, this SIM is ideal for travelers. It offers generous UK data, unlimited local calls and texts, and roaming benefits across 71 countries.

2. Can I use this SIM in other European countries?

Absolutely. You’ll get 18GB of high-speed roaming data to use in numerous European destinations and other eligible Go Roam countries.

3. How do I activate the SIM card?

Simply insert the SIM into your phone or scan the QR code if you’re using the eSIM version (coming soon), turn on data roaming, and you’re ready to go.

4. Does this plan include 5G network access?

Yes, if your device is 5G-compatible and you're in an area covered by Three UK's 5G network, you can enjoy ultra-fast speeds.

5. What happens if I use all 60GB of UK data?

Once you’ve reached the 60GB limit, your data speed may be slowed down or restricted based on Three UK's fair usage policy.

6. Can I extend the plan beyond 30 days?

This is a prepaid 30-day plan. However, you can purchase a new SIM or plan at the end of the cycle to continue service.

  • Brand: Three
  • UK Data: 150GB
  • Roaming Data: 18GB
  • Validity: 30 Days
  • Unlimited UK Calls/Texts Included As Standard; 5G Ready
  • Plug & Play
  • Physical SIM Available- eSIM Coming Soon
  • Installation: Physical SIM
  • Activation: Physical SIM Installation
  • Compatibility: Compatible with all device
  • Days of use: 30 Days
  • Delivery time: Instantly
  • ALAND ISLANDS (FINLAND)
  • AUSTRIA
  • AZORES (PORTUGAL)
  • BALEARIC ISLANDS (SPAIN)
  • BELGIUM
  • BULGARIA
  • CANARY ISLANDS (SPAIN)
  • CROATIA
  • CYPRUS
  • CZECH REPUBLIC
  • DENMARK
  • ESTONIA
  • FINLAND
  • FRANCE
  • FRENCH GUIANA
  • GERMANY
  • GIBRALTAR
  • GREECE
  • GUADELOUPE
  • GUERNSEY
  • HUNGARY
  • ICELAND
  • IRELAND
  • ISLE OF MAN
  • ITALY
  • JERSEY
  • LATVIA
  • LIECHTENSTEIN
  • LITHUANIA
  • LUXEMBOURG
  • MADEIRA (PORTUGAL)
  • MALTA
  • MARTINIQUE
  • MAYOTTE
  • NETHERLANDS
  • NORWAY
  • POLAND
  • PORTUGAL
  • REUNION
  • ROMANIA
  • SAINT BARTHELEMY
  • SAINT MARTIN
  • SAN MARINO (ITALY)
  • SLOVAKIA
  • SLOVENIA
  • SPAIN
  • SWEDEN
  • SWITZERLAND
  • VATICAN CITY
  • AUSTRALIA
  • BRAZIL
  • CHILE
  • COLOMBIA
  • COSTA RICA
  • EL SALVADOR
  • GUATEMALA
  • HONG KONG (CHINA)
  • INDONESIA
  • ISRAEL
  • MACAO (CHINA)
  • NEW ZEALAND
  • NICARAGUA
  • PANAMA
  • PERU
  • PUERTO RICO
  • SINGAPORE
  • SRI LANKA
  • UNITED STATES OF AMERICA (USA)
  • URUGUAY
  • US VIRGIN ISLANDS
  • VIETNAM
  • UNITED KINGDOM

Start enjoying unlimited data

30 Days

Advantages of using our SIM Card

Unlimited UK Data, Calls, and Texts

Stay connected in the UK without worrying about running out of data or exceeding call and text limits

Generous Roaming Allowance

Enjoy data, calls, and texts abroad with our inclusive roaming bundle.

Wide Coverage

Remain connected in 50+ international destinations.

Easy Set Up

Activate Go Roam effortlessly after a purchase from us.

Cost-Effective

Avoid surprise bills with our transparent pricing.

5G Networks

Browse with fastest 5G networks

How Does the Holiday eSIM for Europe Work?

01

Device compatibility

Check if your smartphone is compatible with our eSIM
check compatibility now

Check compatibility

02

Buy your prepaid eSIM

Choose the plan that suits you best and buy your eSIM card from our online store.

Buy eSIM

03

Scan the QR code

It’s easy. Just scan the QR code we send you and turn on data roaming from your settings. Now you can enjoy browsing the web.

Scan QR code

Experience fast and reliable connection with our eSIM

The best performance in all your apps

Discover the freedom of reliable connectivity with high speed 4G and 5G. Holiday esim keeps you connected, no matter the adventure!

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