Data charges

Update for iOS users

Accessing zero-rated websites will use your data allowance if you’re using iCloud Private Relay.

If you have Unlimited data included in your plan or you’re using one of our Unlimited Data Add-ons, good news - we’ll never charge you more than your monthly bill for using data.

If you’re not on an Unlimited plan, you don’t need to worry about going over your allowance accidentally. Once you’ve used up your monthly data, you’ll need to buy an Add-on or change price plan to use more. We’ve done this so you won’t spend more than you mean to.

We’ll text you when you’ve used 80% and 100% of your allowance, so you shouldn’t run out unexpectedly.

Older or Pay As You Go plans won’t have this cap, so you’ll need to keep an eye on your usage. You can check your allowance on the Three app or in your My3 account. If you go over your allowance, you can check our price guide to see what you’ll be charged.

Note: This doesn't apply to Mobile Broadband plans.

Out of Bundle charges

Our prices for anything not included in your allowance are listed here. You shouldn’t be charged for data outside of your allowance because of the way our plans are designed. However, if you want to check our data prices, you can check your price guide.

The table below shows any charges for out of allowance activity. This includes minutes outside or over your allowance, and international calls. International call charges apply when you call another country from the UK and are separate to Go Roam charges.

Data charges abroad

Go Roam lets you use your UK calls, texts, and up to 12GB of data in over 160 destinations worldwide. And depending on when you joined or upgraded, you’ll either: 

  • Have roaming built in
  • Need to pay daily roaming charge

To find out what’s included with your plan, visit our Go Roam page

To help manage your roaming costs while you’re travelling, we’ll text you the roaming rates for each destination you visit. If you’ve opted out of these notifications, you can reactivate them by texting START to 330.  

We’ve also set a worldwide data roaming limit of £45 plus VAT to stop you accidentally overspending. If you’d prefer, you can have this limit removed or changed by contacting us.

Don’t have Go Roam as part of your plan? Or not in a Go Roam destination? You’ll be charged our standard roaming rates. Find out how much it’ll cost to use your device abroad using our destination checker


Inadvertent roaming

Inadvertent roaming – also known as accidental roaming – is when your device accidentally connects to a network in another destination. This can happen if:

  • You live or travel near an international border, where your device may connect to a network in different country
  • You live or travel near a coastline, where your device may connect to a maritime network
  • You’re on a plane, where your device may connect to an airline network

Connecting to another network may mean you’re charged higher roaming rates. If you connect to a network in a new destination, we’ll send you a text explaining any charges you can expect there.

If you’ve opted out of these notifications, you can reactivate them by texting START to 330.

We’ll also let you know if any roaming charges are incurred, and when any Go Roam Passes or Data Passports are activated and end.

To avoid inadvertent roaming, you can:
  • Review your credit limit on your My3 account
  • Switch off Data Roaming
  • Manually select the network for the country you’re in. If you do this, you’ll need to manually change your network each time you visit a new destination 

You can find out how to switch off Data Roaming or manually select a network by searching for your device on our device support page.


Inadvertent roaming in Northern Ireland

If you live close to the Northern Ireland border, your device may accidentally connect to a network in the Republic of Ireland. 

To help you avoid any accidental charges, we’ve excluded the Republic of Ireland from our monthly fair use limit of 12GB. So, you can use your data without going over that limit. 

There are also no fair use limits for making calls or sending texts while roaming in a Go Roam in Europe destination. The Republic of Ireland is also excluded from the daily roaming charge.


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