SIM card

Triple SIM (Standard, Micro and Nano Combined)

2GB Data
200 Minutes
Unlimited texts
£5.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

1GB Data
Unlimited Minutes
Unlimited texts
£5.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

4GB Data
Unlimited Minutes
Unlimited texts
£6.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

2GB Data
200 Minutes
Unlimited texts
£6.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

1GB Data
Unlimited Minutes
Unlimited texts
£6.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

8GB Data
Unlimited Minutes
Unlimited texts
£7.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

12GB Data
Unlimited Minutes
Unlimited texts
£8.00 per month
12 month contract
SIM card

Triple SIM (Standard, Micro and Nano Combined)

12GB Data
Unlimited Minutes
Unlimited texts
£8.00 per month
12 month contract

How does Three SIM-Only stand out?

Three SIM-Only stands out in a number of ways, perhaps most notably by offering a wide range of roaming locations on all plans, coupled with all the premium features you’d expect from a big name network, while still often being cheaper than its main rivals.

Three also has widespread 4G coverage and rapidly expanding 5G coverage, so you’ll soon be able to get high data speeds almost everywhere.

Three SIM-Only Plans

Three offers a wide range of SIM Only plans, with between  1GB and unlimited data. All plans come with unlimited texts and the vast majority come with unlimited minutes too, so it’s possible to get a plan with unlimited everything.

You also don’t have to be tied in for long, as Three offers 1-month, 12-month and 24-month SIM Only plans.

What else do you get with Three SIM-Only?

Three’s SIM Only plans come with a number of extras. For one thing there’s 4G Super Voice, which allows you to call over 4G and in the process fills in signal blackspots.

There’s also Wi-Fi Calling, free roaming beyond Europe (more on which below), and 5G at no extra cost.

Can you roam abroad?

Yes. All current Three SIM Only plans allow customers to use their minutes, texts and data for free in 71 destinations, including Europe and beyond. Here’s the full list:

Aland Islands, Australia, Austria, Azores, Balearic Islands, Belgium, Brazil, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hong Kong, Hungary, Iceland, Indonesia, Isle of Man, Israel, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Macau, Madeira, Malta, Martinique, Netherlands, New Zealand, Norway, Poland, Portugal, Puerto Rico, Republic of Ireland, Romania, Réunion, Saint Barthélemy and Saint Martin, San Marino, Singapore, Slovakia, Slovenia, Spain, Sri Lanka, Sweden, Switzerland, US Virgin Islands, USA and Vatican City.

That’s more locations than any other network offers as standard (though some allow more on select plans).

Can you tether?

Yes. Three allows you to use as much of your data as you want to tether, including on unlimited data plans.

How do I keep my number?

Once you’ve signed up for your Three SIM Only plan just text 'PAC' (from your old number) to 65075, or ask your current network for your PAC code, then fill in Three’s number transfer form.

If you submit the form before 5pm on Monday-Friday (excluding bank holidays) your number should be ported during the next working day. If you send the form outside of these times Three will process it in two working days.

What SIM card size do I need?

You don’t need to know your SIM card size before placing an order, as Three will send you a trio SIM which contains all three sizes in one. Then you just pop out the one that fits your phone.

In all likelihood though you’ll need the smallest size, known as a nano SIM, as all remotely recent smartphones use this size. If your phone is older or not smart though then there’s a chance it will need a larger micro SIM or an even larger standard SIM.

If in doubt, just Google your current handset to see which size it takes.

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